Have you ever slept on a comfortable sofa bed?

[FrumpyPumpy]

If so, what was it and where do I get one?? We have a king size bed in the spare room, and it's very comfortable. But in all honesty we have guests once a month for one night... And we'd like to use the spare room for a

another yes to Ikea Lycksele. its a double only but our spare room is too small for a long sofa. DH and I slept on it for several months during building works. No complaints from guests either.