Our zoned spring system offers scientific support for all sizes. Individual pocket springs provide zoned support right where you need it most. Tested for durability, our spring system will provide you with years of comfort. With five layers of foam, this mattress provides extra pressure relief that molds to your body's curves throughout the night. This medium-firmness mattress is suitable for those who change sleeper positions. Unlike traditional mattresses, our individually sprung mattresses have low-motion transfer and will not disturb your partner. HOMSHADE Mattress Size: Double (4'6)