In reply to Stuart Wildman:
Depends on your budget. But the Helinox Cot One (not the Lite) is amazing if you can find one and afford it. I picked one up in a sale in the US and it was still expensive but gets a lot of use and was absolutely worth it.
The tension mechanism is very well designed and the surface becomes very solid and stable. The M frame scout cots wobble drunkenly and sag.
Also can add a bunch of Easton legs and get it up to normal bed height rather than futon, I believe.
b