I'm really happy with this purchase, this mattress was for my 3 year old son for his new big boy bed, he absolutely loves it and slept in his bed all right without getting into mine in the early hours like he would normally. The mattress is great quality for the price, I left the mattress to air out and expand for two days, the chemical smell went within 24hrs. Really happy with the firmness of the Mattress, is perfect for my growing boy, and i have the reassurance of the silent night guarantee which is a bonus. You cant go wrong with this one. I did buy a waterproof quilted topper to protect the mattress by avoiding the nightmare of little accidents so id definitely suggest that too, it also adds to the comfort.