Any recommendations for a sofa bed that can be dismantled?

[Toomuchtimeonmyhands]

As title, we're looking for a new sofa bed but have a very narrow front door so need something that can be taken to pieces to get it into the house. Can anyone recommend a good place to look? Thank you very much!

Worth asking retailers how their sofa beds are delivered. When I last bought a sofa the arms were attached after everything was brought in. This was obviously to avoid problems getting into houses with a large piece of furniture.

Thank you - will make a few calls :)