The phrase "thick mattress" refers to a bed that has a substantial amount of padding and cushioning, making it more comfortable and soft to sleep on.
Sentences with «thick mattress»
However, all beds are incredibly comfortable with thick mattresses and fluffy pillows; we slept incredibly well here. (i-escape.com)
A 4 - inch thick mattress topper is said to be on the firmer side. (winedinedaily.com)
For extra members of the party, the sofa in the living room folds out into a queen size sleeper with a long, extra thick mattress. (mammothskiinskiout.com)