Single fold up bed recommendations

[MargotMoon]

Can anyone recommend a fold up or occasional bed that will fit into a small space?

I have a tiny box room and not enough space to keep a proper single bed in there all the time.

Budget £100 max.

2nd hand futon
Single Sofa Beds | Futon Company
(try e-bay or local sites like freecycle/freegle)
z bed
JAY-BE® Value Comfort Single Folding Guest Bed with Breathable Fibre Mattress (made-to-last.co.uk)
no idea if the bed is good or not

@KirstenBlest Thanks for pointing me to the Made to Last website 👍

I got a Jay-Be but went over budget to get a bit of a sturdier model. It's very comfy and folds away easily