This pocket memory 1000 mattress is a quality mattress from Silentnight, combining all the essentials to provide comfort, support, and pressure relief through the night. Featuring Mirapocket technology with 1000 individual pocket springs, the mattress provides zoned support which is scientifically proven to ensure better spinal alignment through the night. A layer of "body-hugging" memory foam in this mattress helps to provide extra comfort, as it molds to your body contours for soothing pressure relief and a more peaceful night's sleep. Finished with a beautifully soft knitted, hypoallergenic mattress cover for a smooth sleep surface. This mattress provides a medium-firm feel, suited to those who switch between sleeping on their back or side. Silentnight Size: Double (4'6)