Custom Bedding: When Off-the-Shelf Sheets Just Won't Fit

You bought the biggest sheet set the store had, wrestled it onto the mattress, and by morning two corners had popped off anyway. If that sounds familiar, the problem usually isn't the sheets. It's that your bed isn't a standard US size, and standard sheets were never going to fit it. That's exactly where custom bedding comes in, and SGI makes custom bed sheets cut to your real measurements instead of forcing you into the nearest size up.

What "custom" actually means here

There's a difference between a big sheet and a custom size sheet. A big sheet is still a fixed size that happens to be large. A custom sheet is cut to the numbers you give us, so the pocket depth, the width, and the length all match one specific mattress. No stretching it to reach, no bunching where there's extra fabric.

At SGI the whole thing is made to order at our own factory, with no middleman cutting corners on the dimensions. You're not buying leftover stock that's close enough. You're telling us the size, and we build it. If you want to see the full step-by-step, our guide to how custom size sheets work walks through the ordering process in detail.

Which pieces you can get custom

Custom bedding isn't only about the fitted sheet. SGI makes most of the core pieces to measure, so you can match a whole bed, not just one layer.

Not sure whether you need the whole set or just the fitted piece? That's a common question, and the honest answer depends on the bed. Our breakdown of a custom fitted sheet vs a custom sheet set covers when each one makes sense, since the fitted sheet is the piece that has to be exact while a flat sheet is far more forgiving.

Beds that usually need custom bedding

If your mattress falls into one of these groups, standard sizing was probably always going to let you down. Good news: most of these already have a dedicated SGI fit for them, and custom size bedding covers anything in between.

• Oversized king beds (Alaskan 108" x 108", Texas 80" x 98", Wyoming 84" x 84", Alberta 96" x 96"). These dwarf a standard king, so browse the oversized bed sheets collection first, then go custom for anything not listed.
• Round beds, where rectangular sheets have no corners to grip.
• Boat V-berths, which are tapered and narrower at one end than the other.
• RV and camper mattresses, which run shorter than their home-size names suggest.
• Adjustable and split-top beds, where the top half needs to flex independently.
• Antique, hand-built, and between-size mattresses that simply don't match any modern size chart.

How to measure for custom bedding

This is the part people worry about, and it's simpler than it sounds. You need three numbers, and a soft tape measure.

1. Width. Measure straight across the top of the bare mattress, side to side.
2. Length. Measure from the head end to the foot end.
3. Depth. Measure the side of the mattress from top seam to bottom seam. If you use a topper or a thick pad, measure with it on so the pocket is deep enough.

Measure the mattress itself, not the old sheets, and round to the nearest inch. Those three numbers are all SGI needs to cut a custom size sheet that fits the first time.

The part that removes the risk

Ordering something made to measure online can feel like a gamble, so SGI backs every custom piece with a 100% Fit Guarantee. If the measurements are right and it still doesn't fit, we remake it. That's the whole point of made-to-order bedding: you shouldn't be stuck with a sheet that's close but wrong, the way you are with off-the-shelf sizes.

Our pick

600 Thread Count Cotton Custom Size Sheet Set

A complete matched bed cut to your measurements: fitted sheet, flat sheet, and pillowcases in soft 600 thread count cotton, with a deep pocket and all-around elastic. Nine colors, factory-made to fit, from $124.99. If you want the whole bed sorted in one order, this is the one to start with.

Shop the custom set

Caring for custom sheets

Custom sheets wash the same as any quality cotton or bamboo set. Use a gentle cycle in cool or warm water, skip the bleach and fabric softener, and tumble dry low. Pulling them out of the dryer while they're still slightly damp and smoothing them onto the bed saves you most of the ironing. Treat them well and a good custom set outlasts a stack of cheap standard sheets you'd otherwise keep replacing.

Custom bedding FAQ

How long does custom bedding take to make?

Because each piece is cut and sewn to order rather than pulled off a shelf, custom orders take a little longer to ship than standard stock. The exact window is shown at checkout.

Is custom bedding worth the extra cost?

If standard sheets don't fit, a cheaper sheet that slides off every night isn't the bargain it looks like. One custom size sheet that fits beats three standard ones that don't.

What if I measure wrong?

Measure the bare mattress, round to the nearest inch, and you'll be fine. And the 100% Fit Guarantee is there as a backstop if something's off.

Can I get cooling custom sheets?

Yes. The custom bamboo set is made from breathable bamboo viscose, a good match for hot sleepers who still need an odd size.