Design: Features an 18cm depth of medium soft firmness. Sizes: Available in small single, single, small double, double or king. Mattress sale: Get a deep hybrid memory foam mattress. Hypoallergenic: This mattress has hypoallergenic and anti-dust fillings, with an anti-bacterial feature for a cleaner environment while sleeping. Comfort: Open coil system is designed to distribute weight evenly across the mattress to provide comfort and support. Hybrid Spring Memory Foam Mattress | Living Social | Living Social