Airbeds?

[grumpyhack]

I bought a decent one a couple of years ago - can't remember the make but if you look after it you should get good use out of it. My recommendation though is to go for a double - even if you plan to sleep solo. Also a double sleeping bag (or two singles that zip together to make a double). Then add in an sleeping bag liner. It's a bit more to carry and blow up but worth it to get a decent sleep for the week.