Sleeplac 10 In Aquarius Cool I Gel Firm Ventilation Memory Foam Mattress Twin 10FM01T the 4 Different ILD Memory foam Layers support your body and weight Sleep cool with i-gel memory foam - our bed is comprised of cool i-gel memory foam which provides additional body conforming comfort while helping regulate your overall sleep temperature. Cool I Gel Infused Memory Foam layer tries to keep the temperature 10 years limited manufacture warranty Convoluted Layer disperses your weight down to mattress evenly