I will share some of these suggestions with MrsC. A long time ago, a friend suggested two single airbeds, with a double fitted sheet holding them together. It's much better than a double as you don't get dumped on the floor when the other person gets out in the middle of the night. We also found that the double beds didn't last very long, but the singles are fine. Last year we got two of the self-inflating types, but are finding that getting up of the floor is getting more difficult, so MrsC wants to look at camp beds as well.