Bed with Mattress (Edinburgh EH17)

Looking for a comfortable bed in good condition (in a disassembled format since I'm about to move :) ). Other than a narrow single bed, I'm open to suggestion, the main thing is that I'd also need a good condition, fitting mattress to come with it. Many thanks. (I don't have a car so if by any chance you can drop it off to me, that is extra praise, registered disabled here.)