I really like this mattress... it came with in a matter of a couple days... I was worried it wouldn't be here in time my husband was coming home to build bunk beds and I wanted them here before hand so he could make exact measurerments.. well I took the measurements online before we actually took them out of their vaccum packed bags/boxes. We also bought a twin but we baught this for the bottom in a full size. Anyway... we made each bedframe an inch wider for tucking in comfortors.. SO glad we did because this mattress fit very snug... we should have went almost 2 inches wider but it still works. I can tuck in the sheets but the comforter hangs over.. which probably looks nicer anyway.. the bunk bed were just built with nice wood that we wanted to show off. I also didn't want just a cheap kids mattress on the bottom bunk since our baby is only 20 months old and Ill be laying in there with him.. we'll also use it for when we have guests. Overall a very nice mattress for it's price...just know that's it's pretty firm although it does form to your body... mostly just your hip, when your on your side. Hope this helps a little.