Bought for my daughters bunk bed that required a 16cm or thinner mattress. After reading online that a foam mattress may be a better option than some thinner sprung mattresses i thought i would give this one a go. Delivery was super quick. Easily unpacked the mattress and put on the bed. It does have quite a strong chemical smell for a few days, so its best to let it air before sleeping on it. I had a quick lie down on it once it had puffed up to size and its firm and supportive, better than i had imagined and with a five year guarantee you cant go wrong. Daughter is pleased with it and finds it comfy.