Double Mattress Cheapest Memory Foam Mattress Memory foam is a very popular choice for mattresses since it conforms to your body as heat heats it. The cocooning effect is that the mattress double pocket sprung envelops you and gives you a 'hug' while you sleep. Before you make your final decision there are a few things you need to keep in mind. These include how long you want to sleep 'in' the mattress rather than on it, and the quality of materials. Comfort Double memory foam mattresses offer an excellent level of comfort for all kinds of sleepers. Because of its ability to cut down on motion transfer, it is great for couples who are sharing a bed. Memory foam mattresses that are top of the line in temperature regulation also keep you cool at night. If you are more prone to sleep hot, a gel-infused version is an alternative. It's also more comfortable than conventional memory foam, making it ideal for relieving pressure points.