Pocket Springs System - Each spring is individually wrapped which means they can move independently from one another and provides your body with better support. Total Depth -14cm. The perfect replacement mattress for bunk beds, mid sleepers, and cabin beds. The materials used to manufacture the mattress are hypoallergenic and sanitised. Also has anti dust mite features. Great for allergy and asthma sufferers. Complete with a tape edge cover for extra comfort. Dimensions: 2FT6 Small Single - W75 x L190cm | 3FT Single - W90 x L190cm | EU Single - W90 x L200cm Feel Safe and Assured - This mattress conforms to all British Standards and Fire Regulations. Arrives vacuum packed and rolled for easy transport. Please allow 72 hours once opened for mattress to fully expand.