When the fitted sheet slides off the mattress at night

Short answer: It is about depth. A sheet that is too shallow for the mattress loses its grip. Measure the mattress height and choose a sheet with at least five centimetres more.

Measure the mattress height

With a topper, the height can be over thirty centimetres. See bamboo bed linen.

Elastic all the way round

Elastic only in the corners lets go sooner than elastic all the way round. See bamboo towels.

The fabric needs some stretch

A knitted sheet follows the mattress better than a woven one. See bamboo clothing for women.

Washing can shorten the sheet

A hot wash can contract a sheet so it no longer reaches round. See bamboo t-shirts for women.

Frequently asked questions

Why does the sheet slide off?

Because it is too shallow for the mattress. Without enough depth the elastic loses grip under the corner.

How do you find the right size?

Measure the mattress height including any topper and choose a sheet with at least five centimetres more.

Does elastic all the way round help?

Yes. Elastic only in the corners gives less grip and lets go more easily at night.