The Casper One Mattress (also simply known as "The One") is a three-layer memory foam mattress wrapped in a knit cover. It's rated medium-firm ... it at 4", 8", and 12" above the surface.

The best memory foam ... Both mattresses have an all-foam design The Nectar Classic is 12” high and has three layers of foam with a top and bottom cover The Casper One is 11” high and has ...

Below that is zoned memory foam. I love zoned support mattresses ... with a medium-soft feel. The Max is also two inches thicker, 14 inches versus the Dream's 12 inches. Casper has a Snow line ...

The best memory foam ... Both mattresses also use CertiPUR-US certified foams made without harmful chemicals and low in volatile organic compound emissions. The Casper One is a medium firm ...