
Improving the comfort of a sofa bed mattress is a common challenge, as they are often thin and placed over an unforgiving metal support structure. Several effective strategies can significantly enhance the sleeping experience for your guests.
The most recommended and impactful solution is to add a mattress topper. A quality topper, at least two to three inches thick, creates a substantial layer of cushioning between the sleeper and the thin mattress. Materials like memory foam or latex are excellent choices for providing support and pressure relief. For a softer feel, a down alternative or featherbed topper can also work well. If storage space is a concern, an inflatable air mattress topper is a practical alternative that can be deflated and stored compactly. In a pinch, even a thick duvet or comforter placed under the fitted sheet can serve as a makeshift topper to add a layer of padding.
Addressing the foundation of the sofa bed is another crucial step. The uncomfortable metal support bar and the tendency for the mattress to sag are primary sources of discomfort. You can create a more solid and even sleeping surface by placing a thin piece of plywood under the mattress. This helps distribute weight evenly and prevents the feeling of the support bar digging into your back. If plywood isn't available, even firm objects like books can be used to fill the gaps in the frame and provide better support.
Finally, consider the mattress itself and the accompanying bedding. If the mattress is older and has developed impressions from use, flipping or rotating it can present a fresher, more even surface. Furthermore, never underestimate the power of high-quality bedding. Using soft, comfortable sheets, supportive pillows, and appropriate blankets can transform the overall feel and contribute to a much more restful night's sleep. If these measures do not provide sufficient comfort, the most effective long-term solution is to replace the stock mattress with a higher-quality model specifically designed for sofa beds.


