Designed to offer the ultimate in both comfort and support the cool blue Bonnell mattress features a 13.5g supercoil spring unit finished with a top layer of high density cool blue memory foam providing optimum comfort and pressure relief. With a medium feel and at 18cm deep the cool blue Bonnell mattress is designed to improve airflow and maintain a comfortable sleeping temperature. Featuring a layer of high density Cool Blue memory foam the mattress contours to the body and prevents excessive pressure building on joints, muscles and bones whilst also helping to improve circulation for an undisturbed night's sleep. Cool blue memory foam cradles you in the same way as regular memory foam however it does not completely mould around the sleeper which is the major contributing factor to the excessive warmth associated with sleeping on memory foam mattresses for some people. The mattress has been treated to protect against allergies, asthma and dust mites. All of our mattresses are made using quality materials and meet all the relevant UK and EU standards. Suitable for use with all UK size beds and bases. Delivered rolled and vacuum packed, it's easy to move this mattress through your home and into the right room. When it's in position, remove the packaging and the mattress will return to its original shape, ready to use.