Developed and designed with ultimate comfort in mind, the Cool Revive Plus mattress topper is perfect for anyone who wants to sleep cool and choose their comfort level. Not only does it have an ultra cool cover it also has softer and firmer sides so you can choose your comfort and change it whenever you want. Softer side for instant luxurious comfort, firmer side for a slightly firmer feel and subtle massage effect. This topper is proven to eliminate 100% of pressure hot spots easing your aches and pains.