Air Mattress recommendation?

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I need a portable air mattress that I would hope wouldn't be half bad to sleep on. Looking to spend under $100.00 but could be talked into more for the right testamonial.

Built in air pump is a good idea but not necessary.

This would actually save on some of the travel I have been doing lately. I'd probably like a double or queen size.

I went to epinions.com but there was just too many products to sort through.

Someone recommended an "aerobed" and that they don't deflate/lose air. . .I guess she meant that they don't lose their air easily.

[snafu]

We have a 'WOODS' brand Q sz. which was chosen because it packs into it's own rollercase. It uses Q sz. fitted sheet and looks like a box spring/mattress when made up. We get a lot of visitors in the summer so if guest rm and daybed in the study is 'in use,' we keep it set it up in the lower level family rm. We've also used it outside on the patio. It has a built in pump [I didn't know there are some without pumps] and holds it's inflation very well. We've added air if a guest was a 'big guy.' It was on sale at a sports store and we had a coupon to keep the cost moderate. Regular price was $100.