The Spring Memory Mattress is made from unique upper layer of high density visco-elastic polymer gel. Originally designed for NASA missions, it is soft and pliable following the outline of your body perfectly. A traditional coil spring system is included for extra comfort with bouncy support and a reflex foam boundary is used to prevent you from rolling off the mattress. FEATURES : Material : Memory Foam Finish : White 5cm of Memory Foam 21cm Thickness Traditional coil spring system Reflex foam boundary around springs Orthopedic mattress Ecological Sanitized fabric Hypoallergenic Anti dust mite features Made to British Standards/Regulations Vacuum packed and rolled Available at an affordable price Images shown are for illustration purpose only DIMENSIONS : Mattress Size : Single Mattress