A great value mattress from Silentnight, designed to offer comfort, support, and pressure relief. Featuring Mirapocket technology with 1000 individual pocket springs, this mattress provides zoned support which is scientifically proven to ensure better spinal alignment through the night. With plump filling layers and a beautifully soft knitted mattress cover for extra comfort and a hypoallergenic finish. This mattress also features Silentnight's eco-comfort fibers, so it's good for you and good for the environment, as its comfort layer is made from 100% recyclable plastic bottles which offer breathability and enhanced comfort for a more refreshing night's sleep. A medium-firm comfort rating means this mattress is an excellent choice for those who switch between sleeping on their back and side. Silentnight Size: Double (4'6)