Save your money and room and buy this. This may not meet every ones needs as nothing does.  I bought this and a foot pump for a motorcycle trip after looking at closed cell and self inflating bed mats and I could not justify the expense for the amount of use it will get. It takes up less room when deflated, it cost way less, it fit perfectly in my one man tent, easy to adjust firmness, these are checks in the win column. If you are over 6' look elsewhere you will be hanging off one end or the other. This thing gets pretty thick I would not suggest trying to blow it up without some type of pump. This may not be the in thing but it works awesome and I buy to suite my needs.