This mattress comes rolled up in a plastic sleeve. It took about 16 hours to fully expand. I would suggest having two people to lift and move it onto the bed. This mattress is also cat approved. Less than twenty seconds after unrolling it, the cats were on it investigating it. I went to sleep that night and woke up feeling rested. I didn't wake up sweating like I do most nights with my old mattress. I will be sleeping on this for many night to come and loving it.