The Sapphire 1000 Pocket has been designed from traditional feel pocket spring divans for those of us who prefer that ultimate sleep experience. Pocket sprung Mattresses of this type provide superior support characteristics. Traditional pocket sprung mattress consists of individual springs encased in their own fabric pocket. As they are not wired together each spring is able to move more independently. It is said the pocket sprung system is probably the most comfortable inner spring mattress.