What's the difference between Flat sheet and Fitted sheet?

Flat Sheet: do not have rubber band you can put it on your bed or mattress directly.

Fitted Sheet: have rubber band, before order please check your mattress width, length, and height.

How to choose the Fitted sheet size?
Fitted sheet width = Mattress width size
Fitted sheet length = Mattress length size
Fitted sheet deep = Mattress height size

Before order fitted sheet, please check your mattress width, length and deep size, if you need other size, please contact us.