noun
mattress
MAT-rus/ˈmætrəs/
A thick padded layer on a bed for sleeping on.
A thick, quilted mattress rests on a simple bed frame.

Etymology
The Arabic name for a cushion or rug to lie on literally meant “the thing thrown down.” It names bedding through the image of something laid down for rest.
In context
if somebody's gonna be sleeping in my bed that kind of changes things so here's the thing you could tell the production you need to put bring a new mattress
More examples
- This mattress feels too soft for my back.
- We rotate the mattress every few months.
- The store sells mattresses in several sizes.
Forms
mattress · mattresses
bedding noun — Sheets, blankets, and other bed coverings.
Similar words
- sleeping pad
- Usually thinner and portable, often used for camping.
- sleeping mat
- Usually thinner and placed directly on a floor or ground.