Mattress sizes, including the ones that share a name

The size name on a mattress is a local habit. We sell into the US, the UK, and continental Europe (and Israel, priced in dollars), so the habit collides. If you order a "king" because the last bed was a king, check which country wrote the label.

The rectangles, side by side

These are the sleeping surfaces we cut. Sheets have to match. A US queen sheet on a 160 cm bed will fight you.

If a row isn't on the product you're viewing, that size isn't offered for that item. Pillows are a different list (standard and king-pillow). Don't try to make a mattress size name fit a pillow.

The frame is the constraint, not the dream

Measure the inside of the frame, not the outside molding. A pretty rail can steal 2 cm a side. The mattress should sit in the well without being wedged so hard the edge curls, and without a finger-width gap that lets the sheet disappear.

Slats matter as much as the footprint. If they're further apart than about 7 cm, foam and coils both suffer, and a warranty conversation gets short. A solid platform is fine. A platform with no ventilation and a cheap foam bed is a heat trap. That's a separate essay. For sizing, the point is: the base has to hold the size you buy, continuously, not just at the corners.

Two people and the width you think you need

A US full is a polite way to say you'll touch all night. A queen is the size a lot of couples tolerate. A US king is wide and, annoyingly, the same length as a queen, so a tall person doesn't gain legroom by "upgrading" to king. They gain width. A European 200 cm length is the one that actually changes life for someone over about 6'2".

We don't have a formula for "minimum width per person." Taste and elbows differ. If you already argue about the middle of the bed, buy the wider size that fits the room, not the wider size that requires a new room.

Sheets, protectors, and the size you will forget

Plainweave and the Keeper protector are cut to the mattress size you choose. Order them with the bed. A protector from the old queen will not stretch onto a king, and a king protector on a queen bunches into ridges you'll blame on the foam.

Height matters for the fitted sheet even when the width is right. Drift is 25 cm, Current 27, Harbor 28, Loom 33. A sheet pocket sewn for a thin old mattress will pop off Loom. The product page lists the height. Believe it over the photo.

Doorways, after you've fallen in love with the king

A bed in a box fits through a normal door. The frame you already own may not, if you're buying a new one to match a wider mattress. Measure the stair turn before the frame is on a truck. We've had the mattress arrive and the frame wait a week. The trial clock starts at mattress delivery, not at the day the room is finally finished. If you need the frame first, say so in the order notes and don't start the "is this the one?" test on a floor.

FAQ

Is a UK king the same as a US queen?

They're close and they are not interchangeable. A UK king is 150 × 200 cm. A US queen is 60 × 80 inches, which is about 152 × 203 cm. Sheets will almost work and then twist. Order the size named on your frame.

Which size should a couple get?

The widest size that leaves you a path around the bed. If you can't walk past it, the extra width becomes furniture you resent.

Do all Thaw mattresses come in every size?

No. Check the size menu on the product. If a size is missing, we don't cut it for that model. Don't assume the compare page's default size is the one in your room.