This single memory foam pocket sprung mattress is 20cm deep & comprises a 3cm layer of high density memory foam upon a highly supportive pocket sprung base. The pocket sprung unit has 1000 individual pocket springs which work independently to react to your body&39s weight & movements, offering a supportive sleep. The mattress has a medium feel to it, & is perfect if you are looking for a pocket sprung memory foam mattress with optimum temperature regulation & a good combination of pressure relief & support. The mattress also features a removable & washable quilted Outlast® mattress cover. Outlast® is a technologically advanced material that was originally developed for NASA astronauts to control extreme temperature fluctuations during space flight. The Outlast® fabric is designed to draw heat away when your temperature rises, the heat energy is stored, & then released when you begin to cool down, keeping your body not too hot, not too cold, but just right during the night. This regulation of body temperature means you're less likely to wake during the night, which ensures the deepest sleep possible. The temperature sensitive memory foam layer provides comfort & support to your shoulders, back & hips, & works in harmony with your body to ensure that you are sleeping in the correct anatomical position, meaning you can wake feeling refreshed & free of any minor aches & pains. Memory foam also provides relief for your pressure points, which encourages healthy blood circulation, as well as reducing the need to toss & turn during the night, meaning a deeper & more restful sleep. The pocket sprung base provides a luxurious feel to your mattress, & features 1000 individual springs each encapsulated in a fabric pocket. Unlike interconnected coil mattresses, pocket springs work independently of each other, & the flexibility in the pocket springs allows the mattress to respond to the shape, weight, size, movement & sleeping patterns of your body. Pocket sprung mattresses are also an advantage if there is a considerable weight or size difference between you & your partner. The Outlast® 1000 Single Memory Foam Pocket Sprung Mattress is hypoallergenic & antibacterial, & also inhibits the development of dust mites, meaning it&39s the perfect sleep environment for sufferers of allergies & asthma. Manufactured in the UK with quality raw materials & detailed finishing, you can purchase your mattress with the confidence of a 5 year manufacturer&39s warranty from one of the UK&39s leading memory foam mattress manufacturers.