The luxury star memory foam mattress from our bedroomworld essentials range is a mattress that has been specifically created with the comfort of children in mind as well as using memory foam the star contains a coil spring system that serves to further enhance supportgiven its child orientated construction this mattress is particularly well suited for use with bunk beds high sleepers and mid sleepers dimensionsbull small single w 75cm x l 190cm x h 16cm bull single w 90cm x l 190cm x