300 thread count long-staple sateen, sewn in New Jersey

The fitted sheet is the one that has to fit.

Most sheet complaints are not about the cloth. They are about a corner that pops off at four in the morning, so ours has a 15 inch pocket with elastic all the way round.

A bed made up in a full Circadian organic cotton sheet set
15 inch fitted pocket
Handmade in New Jersey since 198160-night sleep trialFree shippingYou set the height

The short answer

Everything here is 300 thread count long-staple organic cotton sateen, cut and sewn by hand in New Jersey from Texas-grown cotton, certified organic under licence GOTS-10229. Twin, full, queen and king. Two numbers decide whether you will be happy with a set of sheets, and neither of them is thread count. The first is pocket depth, because a fitted sheet that will not reach around your mattress is a sheet you fight every week. Ours is 15 inches with elastic all the way round. The second is staple length, because long fibers are what stop a cloth pilling after a year of washing.

Cloth
300 thread count long-staple organic cotton sateen
Fitted pocket
15 inches deep, with elastic the whole way round
Sizes
Twin, full, queen and king
Colour
The natural undyed colour of the cotton
Care
Machine wash warm or cool, tumble low or hang, skip the softener
Certification
Certified organic, licence GOTS-10229, audited by Oregon Tilth

Buy the set, or buy the piece that wore out.

The set is the simple way to change a whole bed at once. The pieces are there because a fitted sheet almost always gives out before a flat one does.

A bed made up in a full organic cotton sheet set
Start here

Organic Cotton Sheet Set

Fitted sheet, flat sheet and pillowcases in one cloth, so nothing on the bed is a slightly different shade of off-white. The simplest way to change everything in one go.

Best for starting from scratch, or replacing a whole worn set

From $249.00 See the pillow ›
An organic cotton fitted sheet pulled taut over a deep mattress
15 inch pocket

Organic Cotton Fitted Sheet

Elastic all the way round rather than gathered only at the corners, and deep enough for the mattresses most sets will not reach. This is the piece people come back for.

Best for a deep or pillow-top mattress, and replacing the piece that wore first

From $119.00 See the pillow ›
An organic cotton flat sheet folded back over a bed in a wide cuff
Double-turned hem

Organic Cotton Flat Sheet

A generous cut with a wide double-turned hem at the top, so the cuff you fold back over the duvet is the same cloth twice rather than a raw edge showing.

Best for sleeping under a sheet as well as a duvet

From $109.00 See the pillow ›
Two pillows in organic cotton pillowcases at the head of a bed
Sold as a pair

Organic Cotton Pillowcases

A plain slip-on opening with no zip against your face, in standard, queen and king. Breathable enough that it does not undo the pillow underneath it.

Best for finishing the bed, and matching the case to the pillow size

From $79.00 See the pillow ›

Why the corner keeps popping

Mattresses got deeper and most fitted sheets did not.

The single most common complaint about fitted sheets has nothing to do with the fabric. It is that the sheet will not stay on, and the reason is almost always arithmetic.

1

Mattresses grew

Pillow tops, hybrids and thick toppers all add height, and a mattress that once measured nine or ten inches now often measures well past that.

2

Pocket depths did not keep up

Plenty of sheets are still cut to a pocket that suited a thinner mattress, and the packaging rarely prints the number anywhere obvious.

3

The sheet only just reaches

It goes on, which is the trap. There is nothing spare underneath, so the whole thing is held on by tension rather than by the fit.

4

Then you move in the night

One corner lifts, and once a corner has gone the rest follows within a few minutes. You wake up on the mattress rather than on the sheet.

Measure your mattress from the top surface down to where it meets the frame, including any topper, and buy a pocket deeper than that number. Ours is 15 inches, which covers most beds with room to spare.

The corner of the Circadian fitted sheet lifted to show the 15 inch pocket and the elastic

How ours stays on

Fifteen inches, and elastic the whole way round.

Two things hold a fitted sheet in place. The first is having enough cloth to tuck under the mattress rather than just to reach it. The second is where the elastic sits. Many sheets gather it at the four corners only, so the long sides have nothing holding them and the sheet creeps up the mattress as you move.

Ours runs elastic around the entire opening. That spreads the tension along the sides instead of concentrating it at four points, which is what stops the creeping in the first place and what keeps the top surface flat when you get in.

15 inpocket depth
All roundelastic, rather than at the corners only
An organic cotton fitted sheet pulled taut over a deep mattress

Why long-staple

Long fibers make a cloth that survives the wash.

A cotton fiber's length decides how the yarn behaves. Short fibers leave ends sticking out, and those ends work loose in the wash, ball up, and become the pilling you feel under your hand after a year. Long-staple fiber tucks its ends into the body of the yarn, so the surface stays smooth.

It is stronger too, which matters most for the fitted sheet. That piece gets stretched over a mattress a couple of hundred times a year, and it is the one that gives out first in almost every set. Ours is long-staple organic cotton in a sateen weave, which puts more of the yarn on the surface and gives the drape without a chemical finish.

300thread count, which is the useful range
Sateenweave, soft without a finish
An organic cotton flat sheet folded back over a bed in a wide cuff

Living with them

Wash them cool, and leave the softener in the cupboard.

Machine wash warm or cool and tumble on low or hang to dry. Sateen softens with washing rather than degrading, so these get better for a long time before they start to age, and the one thing that interrupts that is fabric softener. Softener works by coating the fibers, which reduces how well the cloth breathes and undoes the reason you bought cotton.

The sheets arrive in the natural undyed colour of the cotton, a soft off-white rather than a bright one, and they smell faintly of the plant for the first wash or two. That smell is the absence of processing rather than the presence of anything.

Cool washand tumble low or line dry
No softenerit coats the fibers and blocks the weave

What to check on a sheet, in the order it matters.

Four of these decide whether the sheets are still good in three years, and only one of them appears on the front of most packaging.

How to judge organic cotton sheets, 2026.
What to check Ours Why it decides it
Fitted pocket depth 15 inches A shallow pocket pops off a deep mattress every week
Where the elastic runs All the way round the opening Corner-only elastic lets the long sides creep up
Staple length Long-staple Short fibers work loose in the wash and become pilling
Thread count 300 Useful to about 300, gamed with plied yarn above it
Weave Sateen More yarn on the surface, so drape without a chemical finish
Dye and bleach Neither on these The heaviest processing steps in finishing a cloth
Certification Certified organic, licence GOTS-10229 Covers the processing rather than only the crop
Where it is sewn By hand in New Jersey, from Texas-grown cotton Most bedding arrives imported and finished

What are you replacing.

Everything, all at once.

The set. Fitted, flat and pillowcases in one cloth, which also means nothing on the bed is a slightly different tone from anything else.

Organic Cotton Sheet Set ›

Your fitted sheet pops off the corner.

Measure the mattress first, including any topper, then take ours. The pocket is 15 inches and the elastic runs the whole way round rather than only at the corners, which is usually the entire problem.

Organic Cotton Fitted Sheet ›

One piece wore out and the rest is fine.

Buy that piece on its own. It is all the same sateen, so a replacement fitted sheet sits under a flat sheet you already own without looking like a patch.

Organic Cotton Flat Sheet ›

You just bought one of our pillows.

Then the case matters more than usual, because a synthetic one blocks the moisture the fill underneath is built to move. Match the case to the pillow size rather than to the bed.

Organic Cotton Pillowcases ›

Sheets, answered.

How deep is your fitted sheet pocket?

Fifteen inches, with elastic all the way round the opening rather than gathered only at the corners. Measure your mattress from the top surface down to the frame, including any topper, and you want a pocket deeper than that number so there is cloth to tuck under rather than cloth that only just reaches.

What thread count are your organic cotton sheets?

300, in long-staple organic cotton sateen. Thread count is useful up to roughly that point and misleading above it, because higher figures are usually reached by counting plied yarns several times over. Staple length is the number that predicts how a cloth wears, and it is the one nobody prints.

What sizes do your sheets come in?

Twin, full, queen and king, across the sheet set, the fitted sheet and the flat sheet. Pillowcases come in standard, queen and king, and you match those to the pillow rather than to the bed.

What is in an organic cotton sheet set?

A fitted sheet, a flat sheet and pillowcases, all in the same cloth. Buying the set is the simple way to change a whole bed at once. Buying the pieces separately makes more sense once something has worn out, which is almost always the fitted sheet.

Are your sheets certified organic?

Yes, under licence GOTS-10229 issued by Oregon Tilth, with a yearly on-site audit. The certification follows the cotton through processing rather than stopping at the farm, which is the part that decides what ends up in a cloth your skin is against all night.

How should I wash organic cotton sheets?

Machine wash warm or cool and tumble on low or hang them to dry. Skip the fabric softener. Softener works by coating the fibers, which reduces how well the cloth breathes, and sateen softens with washing on its own without any help.

Will sateen sheets sleep too warm?

Not in organic cotton at this weight. Sateen describes the weave rather than the fiber, and what it changes is drape and softness rather than warmth. If you sleep hot, the layers that decide it are what is inside your duvet and your pillow.

Why do new organic cotton sheets smell?

That is the smell of cotton. Unbleached and unscented cloth has a faint sweet, slightly dusty smell of the plant, and it goes within a wash or two. Nothing was added to create it and nothing was added to mask it, which is the reason you can smell the material at all.

Do organic cotton sheets shrink?

Cotton moves a little in its first washes, which is why the pocket is cut at 15 inches rather than at the number we would need if nothing ever changed. Wash cool and dry on low and the movement stays small. High heat in a dryer is what causes the shrinkage people complain about.

What colours do your sheets come in?

These are the natural undyed colour of the cotton, a soft off-white rather than a bright white. Dyeing is one of the heaviest steps in finishing a textile and bleaching to a true white is heavier still, so the cloth here is left the colour it grew.

Measure the mattress, then buy the sheet that goes round it.

Fifteen inch pocket, elastic the whole way round, and the same sateen across every piece. Free shipping. Cut and sewn by hand in our New Jersey workshop.

See the sheets