Ok so the situation is, you are staying at a friend's house on the sofa bed in the living room. However it's getting quite late and no one is showing signs of going bed, and you can't go to bed until THEY go to bed because you are all in the living room. Going home or sleeping in their bed is not an option.
Is it unreasonable to say something about wanting to go to bed? Or should you just follow the hosts, even if it's VERY late?