I've never written a bad review before but this mattress is so bad that I feel that I must.  I bought this a few months ago and kept it in it's package in the garage.  I was very excited to use it for camping over the weekend and couldn't believe that it lost all of it's air by the middle of the night.  I only weigh 107 pds so I know it wasn't my weight.  I used it in a tent that was sitting on a tarp so I don't think there were any sharp objects near it.