It's a mattress that has a layer of memory foam on top of a layer of springs or another form of support foam. Orthopedic Memory foam Pillow moulds to your body from using your body heat, offering customised comfort and support. When pressure is removed from the mattress, it is known to bounce back to its original form, and over time, it will recall the shape of your body, your sleeping patterns, and more, earning it the name memory foam.