I don't want anything that depends on air to work. I have used the foam pool floats before and they worked out perfectly, I was just wanting something big enough for two people. I guess I could duct tape 2 of them together but then if you roll on the seam it might not be too comfortable. I thought surely someone would make some closed cell foam about the size of a full bed matress for camping. I have slept on the foam pool floats and they are about as comfortable as any bed I've ever slept in since I like a firm-support bed.