The Kids Avenue Sleeptight Pocket Mattress is a super comfy mattress with a layer of high density foam to compliment the 600 pocket spring units which are encased in a further layer of foam. The Sleeptight Pocket mattress provides excellent support for growing children. The layers of castellated foam help keep your child comfortably cool and dry. The Kids Avenue Sleeptight Pocket Sprung Double Mattress comes in a UK size (140cm x 190cm) and is xxxcm deep. With its Fresche high performance anti microbial treatment to fight bacteria and odour it stays fresh day to day.