Emma Hybrid Mattress consists of six layers: A soft Emma UltraDry cover that ‘breathes’, preventing stuffiness from ruining your sleep. An adaptable layer works with AeroFoam to relieve pressure and reduce motion transfer for out-of-this-world comfort. MemoryAdapt Foam adapts to your unique shape of your body and evenly distributes your weight across the mattress for total relaxation The durable SupportBase foam provides you with the right level of firmness–without the dips and sinks. Lay back and move freely until you’ve found your best sleep position. A mattress with 7 different zones (head, shoulders, upper back, lower back, hips, thighs, and feet) of infinity springs, each of which provide a specific type of support for the different parts of your body. An anti-slip UltraDry bottom cover keeps your mattress perfectly positioned on the bed, all night every night. In combination, the layers provide optimal ergonomic support and ensures spinal alignment. Additionally, Emma mattress adapts perfectly to any type of sleep position (i.e. side, stomach and. back) regardless of body weight, and provides premium cooling comfort while ensuring its durable stability. Our zero-motion technology alleviates motion transfer so that you won't be disturbed by your partner at night.