Great blow up mattress. As others have said it does take a while to blow up by mouth but that doesnt bother me at all. Some other reviews made it seem as though you have to have an iron lung to blow it up. I filled the mattress with air in 5-7 minutes and took about just as long to deflate. Deflates completely to a very compact size. I even was able to fit it in the bag with my tent which is awesome! very comfortable.