Unit 3: Pillows and Cushions

Measuring the Pillow and Figuring the Fabric

A pillow cover is a small project with almost no forgiveness in it. There is no ease to let out, no dart to move, no hem to lengthen. Whatever you cut is what you get. So the work begins with a tape measure and a pencil, not with the machine, and the half hour you spend here decides whether the finished cover looks plump and tailored or baggy and sad.

Measure the form, never the old cover

Measure the pillow insert itself, not the cover that came off it. Old covers stretch, shrink, and were often the wrong size to begin with. Lay the form flat, smooth it with your palm, and measure straight across the middle from seam to seam in both directions. Write both numbers down. A form sold as eighteen inches is often a true eighteen, but forms vary, and a firm foam seat cushion in particular may measure a half inch off its label.

While you have the tape out, measure the thickness of the form at its middle. A knife-edge throw pillow is thin enough to ignore, but a firm cushion for a bench or a rocking chair has real depth, and the fabric has to travel up and over that crown. For a firm cushion, measure across the top and down over the rounded edge to where the seam will sit, and use that measurement as your finished width.

The cutting formula

For a simple knife-edge pillow cut from one folded piece of fabric, the arithmetic is short. Cut the fabric two inches wider than the pillow, and twice the pillow's other dimension plus two inches long. For an eighteen by twelve inch pillow, that is a piece twenty inches wide by twenty-six inches long. Fold it in half across the length, and you have a front and a back joined at one end.

Understand what those extra two inches are doing. With a half inch seam allowance taken on each side, two inches of added width leaves a finished cover one inch larger than the form. That is a comfortable, slightly relaxed fit. If you want the tight, plump, upholstered look you see on a well-dressed sofa, add only one inch instead of two, so the finished cover comes out exactly the size of the form. The insert then has to compress a little to go in, and that compression is what fills the corners.

Seam allowance is a choice, not a law. Half an inch is the standard for pillow work. Move up to five eighths of an inch for thick, ravel-prone goods such as upholstery velvet or chenille, where a narrow allowance simply pulls apart. Whatever you choose, use the same allowance everywhere on the project and add it into your cutting numbers before the scissors come out.

Buying the yardage

Home decorating fabric usually runs about fifty-four inches wide; quilting cotton usually runs about forty-four. Sketch your pieces on a scrap of paper as rectangles inside that width before you buy. Two eighteen inch pillow fronts sit side by side comfortably across either width; a twenty-six inch long piece does not fit crosswise on forty-four inch goods, so it has to run along the length and eat more yardage.

Buy extra. Prewashing takes some of the length, a printed fabric may need shifting so a motif lands in the center of the pillow, and a striped or plaid fabric has to be cut on the true line of the pattern rather than the true grain, which wastes more. A quarter yard of margin is cheap; a shortage discovered at the cutting table is not.

Prepare the work first

Solomon's counsel is about order: get the field ready, then build the house. Sewing rewards the same order. The measuring, the sketching, and the arithmetic are the field. They are unglamorous, they produce nothing you can hold up, and skipping them is the single most common reason a home sewer ends up with a cover that will not close over its insert. Do the dull part first, with a sharp pencil, and the sewing afterward goes quickly and gladly.

Keep the numbers. A three by five card in your sewing box with the measurements of every pillow form in the house will save you an hour every time you redo a room.

Prewashing, Squaring, and Cutting Honest Rectangles

A pillow cover is four straight edges and four right angles. That sounds easy, and it is exactly why crooked pillows are so common: nothing about a rectangle hides a mistake. A front cut a half inch off square will fight the back all the way around, and the finished pillow will look faintly wrong without the eye being able to say why.

Wash before you cut, not after

Prewash every fabric that will go into a pillow cover, and wash it the way the finished pillow will be washed. Warm water and a moderate dryer setting is the usual choice for cotton and cotton blends. Fabrics can lose several percent of their length in that first wash — five to eight percent is not unusual for a woven cotton — and a cover cut before shrinking will come out of the laundry too small for its insert. Once the seams are sewn there is no remedy but to start over.

Press the fabric while it is still slightly damp, or press it dry with steam. Wrinkles left in the cloth become error in the cutting. Keep the iron moving, keep the cord clear of your knees, and stand the iron on its heel whenever your hands leave it; a hot soleplate lying face down on a folded cotton is how sewing rooms catch fire.

Finding the true grain

Woven fabric has two straight directions: the lengthwise grain running parallel to the selvage, and the crosswise grain running from selvage to selvage. Cut along either one and the edge is stable. Cut across them at an angle and the edge stretches and ripples, which shows badly on a pillow seam.

Fabric almost never comes off the bolt squared. To find the crosswise grain on plain-weave quilting cotton, snip through the selvage an inch and tear straight across; the tear follows one thread and gives you a perfectly true line. On decorator fabrics that are too heavy or too loosely woven to tear, pull a single crosswise thread out of the cloth instead and cut along the little channel it leaves. Then fold selvage to selvage. If the torn ends match and the fold lies flat with no diagonal wrinkle, the piece is square. If it does not, tug the fabric firmly on the bias, corner to corner, to pull it back into line.

Printed fabric adds a second question. A print stamped slightly off grain forces a choice, and on a pillow the eye trusts the print, not the threads. Cut a strong stripe or plaid to follow the pattern even when it wanders a little from the true grain.

Spreading and cutting

Give yourself a large flat surface. A dining table beats a lap or a bed. Smooth the fabric out from the center toward the edges with your open hands rather than pulling it into place; stretched fabric relaxes after cutting and takes your right angles with it.

Mark with a long clear ruler and chalk or a fine washable marker, checking that opposite sides measure equal and both diagonals measure equal — that diagonal check is the fastest proof of a true rectangle. Cut with a rotary cutter against an acrylic ruler on a self-healing mat, or with long shears kept flat on the table, sliding the blade rather than lifting the fabric. A rotary blade is a razor on a wheel. Close the guard every single time it leaves your hand, cut away from your body, and keep your steadying fingers back from the ruler's edge, not curled over it.

Stretched out like a curtain

The psalm describes God stretching out the heavens like a curtain, an image of fabric drawn out smooth and wide by a steady hand. There is something quietly instructive in it for the sewer bent over a table. Cloth wants to be laid out fully, flat, and unhurried before it is cut. Handle it that way, and it repays you with edges that meet and corners that square. The unglamorous half hour of tearing, folding, and smoothing is what makes the sewing that follows feel effortless.

Sewing the Body of a Knife-Edge Pillow

With two squared pieces cut, the pillow itself is about twenty minutes of work. A knife-edge pillow is simply two panels sewn face to face all the way around, with a gap left open for turning and stuffing. Everything that makes it look professional happens in how steadily you hold the seam allowance and how you handle the four corners.

Setting up the machine

Fit a fresh needle. An 80/12 universal handles quilting cotton and light home-decorating fabric; step up to a 90/14 for heavier decorator cloth or a doubled layer at the corners. The needle eye should carry your thread freely — if the thread frays as it sews, or the fabric shows visible holes along the seam, the needle is the wrong size for that thread and cloth. Dull needles are the quiet cause of half the trouble in a sewing room; change yours often, and always after sewing over a pin.

Thread with all-purpose polyester in a color close to the fabric. Set a straight stitch at 2.5mm, which is the workhorse length for pillow seams: short enough to hold, long enough not to perforate the cloth. Sew a test seam on two scraps of the actual fabric and look at both sides. Balanced tension shows the same stitch on top and bottom, with no loops on either face.

Pinning and stitching

Put the two panels right sides together, raw edges flush, and pin every three or four inches with the pin heads out toward the raw edge so you can pull them as you come to them. Do not sew over pins; the needle can strike one, shatter, and throw a fragment.

Choose one side for the opening and mark it with two pins about eight inches apart, roughly centered on that side. On a small pillow six inches is enough; on a firm or oversized form, leave ten so you are not forcing the insert through a slot.

Begin sewing a couple of inches past one of those marks. Backstitch three or four stitches, then sew forward at your half inch allowance. Guide the fabric with a hand on either side, letting the feed dogs pull it through. Pushing it from behind or tugging it from in front is what produces bunched, uneven stitches and a wavy seam.

Turning the corners

Stop with the needle down in the fabric exactly a half inch from the edge you are approaching. Lift the presser foot, pivot the whole pillow ninety degrees, drop the foot, and continue. Needle down is the whole trick; if the needle is up when you pivot, the fabric shifts and the corner comes out rounded or notched.

Sew all four sides, and when you reach the second opening mark, backstitch firmly and cut the threads. Those two backstitched ends take all the strain when you wrestle the insert in, and a seam that unzips itself at the opening is nearly always one that was never locked.

Checking before you go further

Look at the wrong side. The stitching should sit a consistent half inch in, and the corners should be sharp right angles, not gentle curves. Measure across the sewn shape at the middle: it should match the finished size you planned. If one seam wandered wide, unpick it now while the pillow is still flat and easy to handle. Ten minutes with a seam ripper at this stage is far cheaper than a cover that will not fit its insert.

Quiet work with your own hands

Paul told the Thessalonians to study to be quiet, mind their own business, and work with their own hands. It is an odd-sounding ambition in a loud age, and it describes an afternoon at a sewing machine almost exactly. There is no audience for a pillow seam. Nobody will ever inspect the inside of it. You sew it straight because it ought to be straight, because the work is honest and yours, and because a house furnished by patient hands is worth more than one furnished by a catalog. That is a large part of what this craft has always been.

Crisp Corners, Turning, and the Stitch That Closes the Gap

Nothing separates a homemade pillow from a well-made one faster than its corners. A cover sewn perfectly straight can still come out with four soft, puffy lumps where the corners ought to be, and the reason is almost always the same: too much fabric folded into too small a space. The remedy takes about ninety seconds and happens before the cover is turned.

Trim the corners on the diagonal

With the cover still inside out, take small sharp scissors and cut across each corner at a forty-five degree angle, removing the little triangle of doubled seam allowance. Cut close to the stitching but never through it — leave about an eighth of an inch of fabric standing between your cut and the thread. If you nick the stitching line, the corner will open when the insert pushes against it, and you will be repairing it from the outside where the repair shows.

On thick decorator fabric, take a second pass: after the diagonal cut, taper the seam allowance on each side of the corner for an inch or so, shaving it down gradually rather than in a step. Grading it this way keeps a hard ridge from printing through the fabric on the right side.

While you are in there, press the seam allowances open along all four sides, or press them to one side consistently. A seam pressed before turning lies down flat afterward. A seam turned unpressed keeps its fold memory and shows as a faint rolled ridge for the life of the pillow.

Turning and pushing out

Reach through the opening and pull the cover right side out slowly, working one corner at a time rather than yanking the whole thing through. Then push each corner out from the inside with a point turner — a flat blunt tool made for the job — or a chopstick, or the closed end of a knitting needle. Work from within the pillow, pressing outward into the corner. Never poke at a corner from the right side, and never use scissor points or a seam ripper: a sharp tip will punch straight through the weave or cut the corner stitches, and the hole will not close again.

If the corner still looks blunt, it usually is not the turning that failed. Reach inside, find the corner between finger and thumb, and roll the seam gently until the stitching line sits exactly on the edge rather than a little to one side. Press it there with the iron, and it will hold.

Closing the opening by hand

Push the insert in, working the corners of the form into the corners of the cover before you settle the middle. Then fold the raw edges of the opening inward so they continue the line of the seam, and pin them. Press the folded edges lightly if the fabric will not behave.

Close the gap with a ladder stitch. Bring the threaded needle up through the fold on one side, take a stitch about a quarter inch long inside that fold, then cross directly over and take a matching quarter inch stitch inside the opposite fold. Keep going back and forth, and the working thread stays hidden inside the two folds like the rungs of a small ladder. Every three or four stitches, pull the thread snug and the folds draw together and the ladder vanishes. Use a single strand of all-purpose thread, knot it well, and finish with two tiny backstitches buried in the seam.

Done properly, the hand-closed section is invisible. If you can see it, the usual causes are stitches taken outside the fold instead of inside it, or stitches too long, which lets the seam gape when the pillow is squeezed.

The day of small things

The prophet asked who has despised the day of small things, and it is a fair question to bring to a corner of a pillow. Nobody will ever compliment your diagonal trim. Nobody notices a ladder stitch that worked. But the difference between a pillow that looks bought and one that looks apologetic lives entirely in these unglamorous ninety-second habits, repeated every time. Faithfulness in small things is a real virtue, not a decorative one, and a sewing room is a good place to practice it where the stakes are low and the evidence is plain.

The Envelope Back: An Opening Without Hardware

A pillow that is sewn shut cannot be washed without a seam ripper. The simplest cure is an envelope back: two rectangles that overlap across the middle of the back like the flap of an envelope, so the cover slips off the insert in seconds. There is no zipper to buy, no buttonhole to work, nothing to break. Learn this closure first and you may find you rarely need another one.

Figuring the overlap

The whole design rests on one number. The two back pieces must overlap enough that the insert never shows through the gap, and never pulls apart when the pillow is leaned on. Two and a half to three and a half inches of overlap is the working range. Below two and a half inches the flaps gape, and once a pillow gapes there is no fixing it without recutting.

Work the arithmetic before cutting, not after. Take an eighteen inch form with a front panel cut nineteen inches square, allowing a half inch seam allowance all around. The two back pieces together must span that same nineteen inches, plus the overlap, plus whatever each hemmed edge folds away. With a three inch overlap, the two pieces need to total twenty-two inches after hemming, so eleven inches each. Each hem folds under twice at a half inch, consuming one inch. So cut each back piece twelve inches by nineteen inches.

Check the result against a rule of thumb: the combined length of the back pieces should run four to eight inches longer than the finished back. Twelve plus twelve is twenty-four, which is six inches longer than the eighteen inch finished dimension. That lands squarely in range.

Hemming the flap edges

Each back piece needs a finished hem on the edge that will lie in the middle of the pillow. Only that edge — the other three are caught in the outer seams and need nothing.

Fold the edge over a half inch to the wrong side and press. Fold it over a half inch again, press again, and pin. This double fold buries every raw edge, so the hem cannot ravel however often the cover is washed. Stitch it down about three eighths of an inch from the folded edge at a 2.5mm stitch length, sewing from the right side of the hem so the visible line stays even. Press once more when it comes off the machine.

Take the time to make these two hems match. They sit side by side in the finished pillow, and an eye that would never notice a crooked side seam catches two uneven hems immediately.

Assembling

Lay the front panel right side up. Place the first back piece on it right side down, raw edges matched to one side, hemmed edge toward the center. Place the second back piece right side down from the opposite side, so its hemmed edge overlaps the first. The overlap should measure the three inches you planned; check it with a ruler before pinning rather than trusting the eye.

Pin generously through all layers, especially in the overlap where four thicknesses meet. Sew all the way around the outside at a half inch, backstitching at the start and finish, and pivot at each corner with the needle down. Run a second row of stitching across each end of the overlap, right in the seam allowance, if the pillow will get hard use — that is where the strain lands when someone tugs the cover off.

Trim the corners diagonally, turn through the envelope opening, push the corners out, press, and put in the insert.

Understanding your way

Proverbs says the wisdom of the prudent is to understand his way. Prudence here is not caution; it is the habit of seeing the whole path before taking the first step. The envelope back is a small parable of it. Everything depends on numbers settled while the fabric is still flat and blank. Cut first and hope, and the gap is already in the cloth before you ever sit down at the machine.

Choosing and Preparing a Zipper

A zipper is the tidiest pillow closure there is, and the one most likely to defeat a capable sewer. Almost every zipper failure traces back to a decision made in the store or a step skipped at the ironing board, not to anything that happened at the machine. So before any stitching, learn what to buy and how to get it ready.

Three kinds of zipper

An invisible zipper carries its coil on the underside of the tape so that, once installed, nothing shows on the right side but a fine seam and a small pull. Size #2 is the standard weight for pillows. It gives the most refined result and is the least forgiving to install.

A coil zipper is made of nylon coiled and stitched onto a polyester tape. Size #3 is the common pillow weight. It bends easily, which makes it the right choice for a curved seam or a rounded cushion, and it is the general workhorse for pillow covers.

A metal zipper is the most durable and the obvious choice for a cushion that gets sat on daily. Its drawback is corrosion, so it is a poor pick for anything living outdoors or on a damp porch. Note as well that coil zippers on outdoor cushions should be kept shaded where possible; ultraviolet light degrades the polyester tape over time.

Choosing the length

Buy a zipper a little shorter than the seam it will sit in. On an eighteen inch pillow, a fourteen or sixteen inch zipper is plenty; the cover only has to open enough to get the insert in and out. A zipper shorter than the seam lets both metal stops sit inside the finished cover, away from the corners, which keeps a hard lump out of a corner and keeps the pull from wandering off the end.

If the only zipper in the drawer is too long, do not cut it before it is sewn. Install it, stitch across the coil several times by hand or with a wide zigzag at the point where you want it to stop, and only then trim the excess beyond that new stop.

Preparing the zipper before it goes near the machine

This is the step people skip, and it is the reason their zippers pucker.

Unzip the zipper fully. On an invisible zipper, the coil rolls in on itself and stands up like a tiny ridge; it must be pressed flat and open before it is sewn, or the needle can never get close enough to the coil and the finished seam gapes and puckers.

Press from the wrong side of the tape with a dry or low-steam iron on a synthetic setting, using a press cloth. The tape and the coil are man-made fibers, and a hot cotton setting laid directly on them can glaze, distort, or shrink the tape. Work the tip of the iron along the tape, uncurling the coil ahead of the soleplate. Never set the iron down on the slider or the plastic pull; press up to it and stop.

Press the seam allowances of the fabric flat at the same time. A zipper sews well onto smooth, pressed cloth and badly onto anything wrinkled.

Test before you commit

Cut two scraps of the same fabric, fit the foot you intend to use, and sew a short practice run. The zipper foot rides on one side of the needle and can shift the tension slightly, and finding that out on a piece of forty-dollar decorator cloth is a bitter way to learn. Adjust on the scrap; sew the pillow once.

Hearing the matter first

Proverbs is blunt about answering before listening: it is folly and shame. Zipper work punishes the same impulse. The sewer who reads the seam, checks the foot, presses the tape, and tests on a scrap installs a zipper in fifteen quiet minutes. The one who starts stitching because it looks obvious spends an hour with a seam ripper. Hearing the matter out first is not timidity. It is simply how skilled work gets done.

Installing a Centered Coil Zipper

The centered zipper is the honest, sturdy pillow closure. The coil sits exposed under two rows of topstitching that run evenly down either side of the seam, and it holds up to years of covers being pulled off for washing. A #3 nylon coil zipper is the right weight. Learn this one before attempting an invisible zipper; the sequence is the same, and here you can see everything you are doing.

Baste the seam closed

Decide which edge carries the zipper — usually the lower edge of the pillow back, so the closure does not face the room. Put the two panels right sides together along that edge and pin.

Sew the whole seam at your half inch allowance, but change stitch length partway. Across the stretch where the zipper will lie, use a basting stitch of 4 to 5mm; at each end, beyond the zipper, drop back to 2.5mm and backstitch. The long basting holds the seam shut while you work and pulls out easily afterward. The short stitching at the ends is permanent seam.

Press that seam open, hard and flat. This is the foundation for everything that follows, and a seam that is not pressed open will not give you two straight topstitching lines.

Position the zipper

Lay the work wrong side up. Place the zipper face down over the basted seam, so the coil runs directly along the pressed seam line and the tape lies evenly on the two open seam allowances. Center it end to end, with the stops falling within the basted section.

Pin through the tape and the seam allowances only where you can, or hold it with a few crosswise hand basting stitches. Check by eye down the length that the coil has not drifted off the seam; a zipper set even an eighth of an inch off center produces topstitching that looks obviously crooked on the finished pillow.

Topstitch from the right side

Turn the work right side up. Fit a standard zipper foot and set the stitch length to 3.5mm, which is long enough to keep the multiple layers from puckering.

Stitch a scant quarter inch out from the center seam, from one end of the zipper to the other. That quarter inch of clearance is what keeps the needle safely away from the coil, and it is not a place to be casual: a needle driven into the coil will damage it, and the slider will jam permanently on that spot afterward. Pivot with the needle down, run a short line across the end of the zipper, pivot again, and come back up the second side, again a scant quarter inch from the center.

Sew both long sides in the same direction if you can, restarting at the top rather than turning around at the bottom. Fabric creeps slightly under the foot, and stitching the two sides in opposite directions makes that creep show as a twist at one end.

Open it up

Slide a seam ripper under the basting stitches every inch or so, cutting rather than dragging, and lift the threads out with tweezers. Brush the loose ends away and the coil appears, framed by two even rows of stitching. Open the zipper and finish sewing the remaining three sides of the pillow with the cover inside out — and leave the zipper partly open before you sew that last seam, or you will have no way to turn the cover right side out.

Looking well to the ways of the house

Proverbs 31 praises a woman who looks well to the ways of her household. It is a phrase about attention rather than speed: noticing whether the coil has drifted, whether the seam pressed flat, whether the second row of topstitching matches the first. Idleness in her sense is not resting; it is drifting through work without looking at it. A zipper repays looking. Fifteen attentive minutes here gives a cover that will come off for the wash a hundred times over the next ten years.

Setting an Invisible Zipper So the Seam Looks Sewn Shut

An invisible zipper installed well leaves nothing on the right side of the pillow but an ordinary seam and a small pull hanging at one end. It is the most refined closure in this unit and the least tolerant of shortcuts, because the whole effect depends on stitching nearer to the coil than feels comfortable. A #2 invisible zipper is the standard weight for pillows.

Why this one is different

An ordinary zipper is sewn into a finished seam and then topstitched from the outside. An invisible zipper is the opposite: it is sewn to each seam allowance separately, on the right side of the fabric, before the seam exists at all. When the two panels finally fall together, the coil rolls under and disappears into the fold.

That means there is no topstitching to hide a wobble, and it means the stitching must fall right against the coil. Stitch too far away and the seam gapes open with the zipper showing. Stitch into the coil and the slider will not pass. The margin between those two failures is narrow, which is why the preparation matters more here than anywhere else.

Prepare and place

Unzip the zipper completely and press the coil flat from the wrong side of the tape with a synthetic setting and a press cloth, uncurling the rolled coil so the tape lies open. Do not press over the slider or the pull.

Lay one panel right side up. Place the zipper face down on it along the seam edge, with the coil sitting exactly on the seam line — a half inch in from the raw edge if that is your allowance — and the tape lying out into the seam allowance. Pin it, or hold it with hand basting, which shifts less than pins do.

Stitching close

Fit the invisible zipper foot. It has two grooves on its underside; the coil feeds into one of them and is held upright and slightly flattened so the needle can pass right beside it. Which groove you use depends on which side of the zipper you are sewing and on the particular foot, so check your machine's manual and make a short test run on scrap before touching the pillow.

Sew from the top of the zipper downward, keeping the coil seated in the groove, until the foot meets the slider. Stop there and backstitch. Then close the zipper, lay the second panel right side up, position the free tape along its seam line with the coil again on the seam line, and repeat. Check twice that the zipper is not twisted between the panels before you sew the second side.

Note that near the coil you are working with only about a quarter inch of fabric between the stitching and the raw edge. Keep your fingers well back from that foot; the narrow foot puts your hand closer to the needle than usual.

Closing the seam below the zipper

The seam is still open below the zipper stop. Change to a standard zipper foot, put the panels right sides together, and sew from just above where the zipper stitching ended down to the corner, at the full half inch allowance. Overlap the previous stitching by a few stitches and swing gently out to the seam line so no hole shows where the two lines meet. Then sew the remaining sides of the pillow as usual, with the zipper left partly open for turning.

If the finished seam gapes, the stitching was too far from the coil. If the slider jams, the needle caught the coil. Both are diagnosed in ten seconds and both are fixed by unpicking that side and resetting it.

Glory in concealing

Proverbs says it is the glory of God to conceal a thing, and the honor of kings to search it out. There is a pleasant echo of it in this work. The whole art here is hiding the mechanism so completely that a visitor sees only a smooth seam — and the sewer who wants to do it well must search out what is happening under that foot, groove by groove, until the hidden thing is understood.

Choosing the Insert and Getting a Plump, Filled Look

A beautifully sewn cover over a limp insert looks worse than a plain cover over a good one. The filling decides how the pillow sits, how it wears, how it is washed, and whether it holds a crisp corner. It deserves the same thought as the fabric.

Three fillings

Polyester fiberfill is the practical default. It is hypoallergenic, it springs back to shape the moment you stand up, and it can go through a washing machine. It is the sensible choice for a household with allergies, for pillows children handle, and for anything that must be washed often.

Down conforms to whatever leans against it, which is why a down pillow molds so comfortably behind the back. Cared for properly it outlasts synthetic filling by a long margin. The trade-offs are real: it has no springback, so it must be plumped by hand after every use or it stays flat, and it needs specialized washing rather than a routine trip through the machine.

Down alternative is engineered to imitate the softness and loft of down while staying hypoallergenic and affordable. It is a genuine middle path, softer and more drapey than plain fiberfill, though it does not match real down for longevity or for the way down regulates temperature.

Firm foam is its own category, used for bench and chair cushions rather than throw pillows. A foam cushion holds its shape without any help, so its cover should be cut for a snug fit; slack fabric on a foam cushion reads immediately as a poorly made cover.

Size the insert up, not down

The most common disappointment in pillow making is a cover that looks slightly deflated at the corners. The cure is not more sewing; it is a bigger insert. Choose a form one to two inches larger than the finished cover. An eighteen inch finished cover wants a nineteen or twenty inch form. The filling then presses outward into the corners and the pillow looks full and tailored instead of half-empty.

This is also why the arithmetic from the start of this unit matters. A cover cut with too much added ease around a same-size form will never look plump no matter how carefully it is sewn.

Working the insert in

Open the closure fully. Fold the form in half lengthwise, push it through, and let it open inside the cover. Then set the corners: reach in, take each corner of the form between finger and thumb, and seat it firmly into the corresponding corner of the cover before you smooth the middle. Corners left unseated are what make a pillow look like a bag with something in it.

If you are stuffing loose fiberfill into a shaped piece rather than using a form, work in small handfuls and pack the corners and any narrow points first, teasing each handful apart before it goes in. Large compressed clumps stay clumped and show as lumps under the fabric forever. Fill firmer than seems necessary; loose fill settles.

Living with it

Plump a down or down alternative pillow by hand every few days — take it by two opposite corners and shake, then press the sides in. Keep the cover washable and the insert protected, and the insert may never need laundering at all, which is much of the point of making removable covers.

Arrayed better than Solomon

The Lord pointed at wildflowers and said Solomon in all his glory was never dressed so well. His point is not that beauty is unimportant; it is that costliness and beauty are different things. A well-chosen fiberfill insert in a plain washable cotton, correctly sized and seated into its corners, will look better in a room than an expensive down form in a cover that does not fit it. Choose for suitability. That is where the beauty actually lives.

Diagnosing What Went Wrong and Putting It Right

Every experienced sewer has a shelf of pillows that taught her something. The value of a failed cover is entirely in whether you can name the cause, and most pillow faults have one cause each. Here is how to read them.

Faults you can see on the finished pillow

Puckered stitching along a zipper. Two things cause it. The zipper foot rides to one side of the needle and can shift the tension slightly, and several layers of tape and fabric stacked together resist feeding evenly. The fix is a longer stitch — 3.5mm for topstitching around a zipper — and a test seam with the same foot, the same thread, and the same fabric before the real one.

The slider will not pass a certain point. The needle caught the coil there. Unpick that section, examine the coil, and if it is crushed or a tooth is deformed the zipper has to be replaced; a damaged coil does not heal. Prevent it by keeping a scant quarter inch of clearance from the coil.

Rounded, puffy corners. The seam allowances were not trimmed diagonally before turning. On a finished pillow you can sometimes rescue this: unpick two or three inches at the corner, trim the allowance on the diagonal from inside, and close it with a ladder stitch.

A gap in the middle of an envelope back. The flaps overlap less than two and a half inches. This one is not repairable by stitching. Cut a new pair of back pieces with the proper overlap and reuse the front.

The cover will not fit the insert after washing. The fabric was not prewashed and shrank. Nothing to do but make another cover and prewash next time.

A wavy, rippling seam. The fabric was pushed from behind or pulled from in front while sewing. Keep a hand resting on either side of the presser foot to guide, and let the feed dogs do the pulling.

Faults at the machine

Skipped stitches almost always come from one of three things, and you should check them in this order. First, rethread the machine completely with the presser foot raised, so the thread seats properly between the tension discs; a thread laid in with the foot down often misses them entirely. Second, put in a fresh needle — a needle that has struck a pin or sewn many hours goes blunt or slightly bent and stops forming a clean loop. Third, check that needle and thread suit each other and the cloth: an 80/12 for quilting cotton and light decorator fabric, a 90/14 for heavier goods.

Thread fraying or shredding points to a needle eye too small for the thread, or a burr on the needle or throat plate. Change the needle first; it is the cheapest test in sewing.

Visible holes along the seam mean the needle is too large for the fabric. Step down a size.

Unpicking without wrecking the cloth

Slide the seam ripper under a single stitch and cut, then skip several stitches and cut again, working along the line rather than dragging the point through the fabric. Pull the loose thread from the other side and it lifts in pieces. On a decorator fabric, brush the seam with a lint roller afterward and press it. Old needle holes in tightly woven cloth usually close with steam.

Rising up again

Proverbs says the just man falls seven times and rises again. The point is not that he never falls; it is that falling is not the thing that defines him. This is honest counsel for a craft. The sewer who has ruined a zipper, cut a back too short, and burst a seam on a form that was too large is not a bad sewer. She is a sewer with three pieces of knowledge that cannot be got any other way. Keep the failed cover on the shelf a while, name what happened, and start the next one.