Great support and a cool comfortable feel thats what youll enjoy with the Sleepeezee Cooler Extreme Ortho mattress. This technologically-advanced 25 cm deep mattress owes its firm orthopaedic support to a clever combination of materials. There are 950 pocket springs in king size, layered with innovative fillings including Sleepeezees StayCool gel designed to provide comfortable cushioned support that wont overheat. It also features a cool-to-the-touch Cooler Extreme Tick mattress cover which helps disperse heat away from the body. This mattress is hypoallergenic and handcrafted in Britain. The Sleepeezee Cooler Extreme Ortho mattress is part of the Sleepeezee Cooler Extreme collection which also includes the Sleepeezee Cooler Extreme 1800 mattress and the Sleepeezee Cooler Extreme pillow. The Sleepeezee Cooler Extreme collection is exclusively available at Furniture Village. Sleepeezee holds Royal Warrant of Appointment granted by HRH The Prince of Wales. Please note: The mattress should be aired for four hours after delivery to freshen and remove any aroma from storage. It may take time for your mattress to attain its full size once the springs have settled to the correct position. This is due to the mattress being upright during transit. Settlement of fillings and indentations caused by body weight compressing the fillings are natural and not considered defects. This can be minimised by regular rotating (unless yours is a dual tension mattress).