The L-shaped bed in the rear provides sleeping space for 2 people - but this is a sleeping for people who do not fancy each other very much...
So I decided to add some more sleeping space, to build a larger sleeping area, for two people who do like each other very much (I have yet to find someone for this arrangement...) .
And so the new sleeping area will be 1.20 m wide and 1.90m long. It will cover the space where the foldable table is set up. The boards can be stored in the box under the long seat of the L-shaped bench.