Breathable Hybrid Foam: Emma's foam is perfect for all sleepers, whether you sleep on your side, front or back. Five Sizes: Single, small double, double, king or super king. Emma mattress: Get an Emma Essential mattress - just the thing you need for a restful night's sleep every night! Temperature Regulating: Two layers of breathable foam work away moisture to help you stay cool. Supportive: The medium soft mattress is 18cm in height and designed to suit all body types, with unique cutouts that support shoulders and hips. Removable & Washable Covers: Temperature-regulating top cover and bottom cover are washable at 40 degrees. Emma Essential Foam Mattress | Single | Living Social