The sleepshaper basics mattress features 14cm of supportive foam perfect for supporting growing bodies and is ideal for bunk beds due to its regulation depththe reflex foam that makes up this mattress is designed to keep it well ventilated and to keep you cool throughout the nightalso featured is a non quilted smartsilver cover to keep dust mites and bed bugs away that is fully removable and machine washable at 40 degrees making it perfect for allergy sufferersdimensionssmall single w 75c