How to Measure a Sleeper Sofa Mattress Before Buying Sheets

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Measuring a sleeper sofa mattress before buying sheets can prevent many common fit problems. Because sofa bed mattresses can vary in size and thickness, taking accurate measurements is especially useful.

Open the Sofa Bed Completely

Pull the sleeper sofa out into its full bed position before measuring. The mattress should be fully extended so you can measure the actual sleeping surface.

Measuring the sofa while it is folded can lead to inaccurate results.

Measure the Length

Measure from one end of the mattress to the other. Keep the measuring tape straight and avoid including parts of the sofa frame.

The length helps determine the appropriate sheet size.

Measure the Width

Measure across the widest part of the mattress. Some sofa mattresses may have slightly different shapes, so measuring the actual sleeping surface is important.

Measure the Thickness

Measure from the bottom of the mattress to the top of the sleeping surface. If the mattress has a topper or pad that will remain under the fitted sheet, include it in the total height.

This measurement helps determine the necessary pocket depth.

Compare with the Product Details

After measuring, compare the dimensions with the sheet product information. Check the size, pocket depth, and included pieces.

Avoid assuming that a standard Twin, Full, or Queen sheet will fit simply because the sofa bed is described using a similar size category.

Conclusion

Accurate measurements make it easier to choose sheets for a sleeper sofa. Measure the fully opened mattress, check length, width, and thickness, and compare those measurements with the product details.