Trying to find a smart, comfortable sofa-bed. Help please.

[parachutes]

Hello, we will definitely need to replace our scabby old sofa-bed after this Christmas. So, can anyone recommend a smart-but-extremely-comfortable-sofabed?
Ideally I'd like it to be a three seater. It also needs to look reasonably presentable as it will be in our spare room/office that I use when I work at home (and have clients come to me).
Would really appreciate any suggestions.

Thanks

I got a posh one from Habitat. Never slept on it but guests have said it's comfortable.

Thanks Panzee, will have a look online.