All Slumberland mattresses contain posture pocket springing & edgemax air edging. The spring system provides pressure relief and perfect support for you and your partner, whilst the uniquely designed, ventilated mattress edge support. Created from firmer springs along the sides, which add strength to the edge of the mattress to allow you to use the whole surface of the mattress as a sleeping area. The mattress fabrics have a 100% natural Probiotic fabric treatment to protect against allergens, bacteria and odours, promoting a fresh and healthy mattress. An environmentally sustainable smart fibre that works by wicking away moisture to provide a cool and refreshing night's sleep.