Sleep in luxury with the elegantly designed tranquility 1500 mattress 1500 pocket springs will adapt to your body shape whilst the 45cm cool gel foam pad and coolmax cover will regulate temperature for a more comfortable sleep the mattress features a ventilated side stitched border for extra side support and breathability as well as a ventilated mattress base which helps with air circulationplease note spring count refers to a 5ft kingsize model