Cooling: Featuring a layer of memory foam gel for a refreshingly cool night's sleep. Ideal for summer! Mattress: Get a gel memory foam 18cm mattress. Coil sprung: The coil springs provide support and firmness, with the foam gel offering the softnes. Stretch fabric: The mattress naturally curves to the contours of your body, with four-way stretch fabric for added comfort. Hypoallergenic: The hypoallergenic design is great for those with allergies or asthma. Sizes: Choose from a single, small double, double or king-sized mattress. Memory Gel Foam Coil Sprung Mattress | Single | Living Social