MyBedFrames Replacement Sofa Bed Memory Foam Mattress im Test

The MyBedFrames Replacement Sofa Bed Memory Foam Mattress is a medium-feel memory foam mattress sold in two depths, 10cm for 2-fold sofa beds and 5cm for 3-fold ones, which makes it the most flexible budget replacement we have found for either mechanism. MyBedFrames, which trades as Full Range Furniture Ltd in Bedford, says it is handcrafted in its UK factory and sells it direct from £134.02 in a two-seater width.

Sizes, depths and prices

Both depths cost the same in each width at the time of writing (October 2026), and MyBedFrames shows each price against a higher RRP. Bespoke sizes are made to order on request.

Which depth to order

MyBedFrames is explicit that a 2-fold mechanism takes a 10cm mattress and a 3-fold mechanism a 5cm one, and that you should order the depth that matches your existing mattress, otherwise the frame will not close. A 3-fold action folds the mattress twice into a stack, so every extra centimetre is multiplied. If you are unsure which you have, open the bed: a 3-fold frame usually has a fabric or polypropylene “trampoline” deck, a 2-fold frame webbing straps or slats.

Feel, guarantee and delivery

MyBedFrames describes the feel as medium, which we record as 5 out of 10, and the memory foam moulds to the body under heat and pressure. The 5cm version is a thin layer of foam, and one buyer review on the product page complains that you can feel the bars through it and that it sinks when used as a seat; that is the trade-off of any 3-fold mattress, and the 10cm version is the better sleep where your frame accepts it. The mattress carries a five-year guarantee, and the MyBedFrames delivery FAQ gives free delivery to England, Wales and the Scottish lowlands, with a surcharge for the Highlands. There is no sleep trial.