Buy Sofa Bed Mattress Replacement Link

Open the sofa bed and measure the interior width and length of the metal frame.

If you choose a mattress that is too thick (e.g., 5+ inches), the sofa may not close properly, which can damage the folding mechanism over time. Common Size Standard Dimensions (Width x Length) Twin 35” x 72” or 38” x 72” Full 52” x 72” or 54” x 72” Queen 58” x 72” or 60” x 72” 2. Choose Your Material buy sofa bed mattress replacement

Modern replacements have moved far beyond the thin, squeaky innersprings of the past. Open the sofa bed and measure the interior

A 2-inch memory foam topper can add a layer of luxury for a fraction of the cost, though it may need to be stored separately if it’s too thick for the sofa to close. Choose Your Material Modern replacements have moved far

The most common mistake is measuring the old mattress. Over years of folding, mattresses lose their shape and may no longer reflect the original dimensions needed for your frame.

Measure the height of the frame's side walls where the mattress sits. Standard sofa bed mattresses are 4 to 4.5 inches thick .

Products like the Sleeper Helper are folding boards that sit under the mattress to prevent sagging and block the feel of the support bars.