Dual Sided technology embedded in Serenity it ensures both sides of the mattress can be used which expands its life span and is an excellent feature to maintain its wear and tear. The dual sided feature also improves your weight distribution, as by flipping the mattress regularly you can reduce the likelihood of body impressions.Serenity is made with the cool touch fabric which is an innovative high-performance fabric providing an instant cooling feel to touch and offers significant other benefits such as regulating body temperature to provide better sleep environment.The Serenity Mattress gives a Medium to Firm rating providing essential back support. Perfect for all sleep preferences.