I can’t believe this mattress fit in a long skinnier box! I was skeptical but oh my gosh! I opened the box and took the plastic off and it unfolded and the air pumped into the mattress. What a great price and buy. I purchased it for my toddler along with a floor bed frame. I’m really pleased with the quality. I am a stomach sleeper so I need a firm mattress. When I go into her room to coax her back to sleep I wind up falling asleep and prefer her mattress more than my own now. When it’s time to replace mine I will definitely consider buying one is a king size if available. I bought her a full size.