The Plank Firm is a double-sided foam mattress that offers you a choice of two sleep surfaces: Firm or Extra Firm. We spent more than a month sleeping on and testing the Plank Firm and while it is ...

firm foam. You don't really sink into this mattress at all and it is very easy to rotate between sleeping positions because of how responsive the foams are. I find that when I am lying down on ...

What They Liked: In the age of the foam mattress, it’s easy to forget how breezy springs feel. (At least I did.) Parachute’s mattress is very firm, so my initial impression was one of sleeping ...

for memory- and latex-foam mattresses, higher scores indicate ease of changing sleep position. Indicates how firm a mattress is on our scale from 1 to 10, where 1 is very soft and 10 is very firm.