The luxurious memory pocket 1000 mattress is made up of 1000 individually pocketed springs for superior comfort and support and a 25mm layer of visco elastic memory foam this hand tufted mattress features luxury damask ticking a quilted border and air vents which help to increase airflow and breathabilityplease note spring count refers to a 5ft kingsize modeldimensionsdouble w 137cm x l 198cm x h 255cmking w 153cm x l 198cm x h 255cm