Good IKEA roll-away beds include Svarta, Flaxa and Murbo, according to Apartment Therapy. These models have wheels for storage under a bed or as a sofa.
Flaxa is a roll-away bed from Ikea, says The Hunt. It has a flat base which can roll away under another bed.
The Manstad model comes recommended by users on Apartment Therapy. One says it is "more comfortable than the bed we used to have."
The Murbo bed has wheels that let it roll into a sofa position. The casters make the sofa easy to move when cleaning and re-arranging furniture, according to Ikea. It has three options for mattresses and a variety of different covers.