How often does your mattress hurt you back? Mine does it every single night and god knows that it’s so uncomfortable. This is kid’s mattress called Pebble Mattress designed from Nook Sleeping Systems. The name of the mattress sounds as if it’s hard like the pebbles but it’s actually soft, the name comes because it creates a visual effect like pebbles. This is a healthy mattress as it can protect you from toxic microbes. There are many who is involved in the making of this mattress including, scientists, social psychologists and parents. The nice mattress features with stain water this means you seldom need to wash it and microbe resistant fibers, and the cotton is one with temperature regulating organic type. Sweet dream now says Nook Sleeping Systems.