So excited about this purchase! The box itself was very heavy so you'll need some help getting it inside. It comes tightly wrapped in plastic and begins expanding as soon as you give it some air so be sure it's in the right room before you cut open the plastic. it didn't come with any care instructions but I've read other reviews saying to give it at least 24 hours to air out before sleeping on it. Within seconds it had fully expanded, but I'm going to wait until tomorrow to sleep on it. I did lay down on it for a few minutes and didn't notice any "chemical" smells like I had read about with other mattress reviews. Will update if I notice anything else, but I think this was a great deal!