This is the worst “mattress” ever! It seems more like a mattress topper than an actual mattress. I am an average size person and this provides no support at all to my back. In fact it is so bad, that I have chosen to sleep on my old mattress that I thought I was replacing! Unfortunately I didn’t open the box until I had someone here to help me, so I missed the small window of opportunity to return this item. I am definitely not satisfied with this purchase at all!!