Material: Both the top layer and core construction is made from foam. Memory Foam Mattress: Get a luxury memory foam mattress. Options: Choose between five size options. Features: A high density support memory foam mattress with a 50mm memory foam layer, perfect for providing support for your back, hips, and joints. It also has a washable and removable cover so it is easy to clean. Hypoallergenic: A hypoallergenic cover that aims to reduce symptoms of asthma and allergies. Mattress Depth: 20cm. Memory Foam Mattress | Living Social