Travel beds ------- HELP

[audi321]

Hi all. I'm going on a trip next month and the only reasonably priced accommodation has a sofa bed which I cannot stand.

Is there anything other than a blow up airbed which I can buy to take with us (Double or bigger)? I thought I'd bought a good quality airbed last year, but it's just awful to sleep on.

Is there any kind of roll up mattress type thing which will be half decent to sleep on when put on the floor? I'm going in the car so size isn't too much of an issue (within reason)

Cheers all.