About a year ago we purchased the Lycksele Lovas sofa bed from Ikea and we've been really happy with it. It is small and compact but sleeps up to 2 adults. It is sort of a cross between a futon and a sofa. It folds up and down really easily and it seems to be built very solidly, unlike my previous futon. You can get different covers to put over it too. It is also surprisingly comfortable, both as a small sofa and as a bed. When people stay over we always get comments on how comfortable the bed was, despite how thin the mattress looks. It cost $219 at our local Ikea and fits just about anywhere. For us, it was a great option at an unbeatable price.