Featuring 1600 my pro pocket springs and four natural layers including tree silk cashmere silk and wool the natural wool 1600 mattress offers superior comfort and support myedge support prevents roll off and a mycool layer wicks away humidity keeping you cool fresh and comfortable my pro clean mattress fabric contains good probiotic bacteria keeping you and your mattress clean and healthythis mattress is nbf approved and comes with an 8 year guaranteeplease note spring count refers to