Not a Sofa Bed

Sometimes you need a bed. Sometimes you don’t need a bed. Sometimes you don’t need a sofa either. Here’s an alternative that saves space when it’s packed down and still provides a good night’s sleep when made up. You will need: 1 x Z fold mattress. Get the densest one you can get. Remember high school physics? Divide the weight of the mattress (conveniently available on the Amazon listing page) by the volume of the mattress (also available on the Amazon listing page, with a bit of arithmetic...