The moment you finally measure a potential sofa bed, you realize the standard 200 cm length barely fits, and your coffee table will have to go. That is the reality of small living rooms. I learned this the hard way when my first apartment had a floor plan that measured exactly 3.5 by 4 meters. Every piece of furniture had to earn its square footage. The biggest game changer was trading my bulky three-seater for a pull-out sofa with a slatted frame. It sat five during the day and unfolded into a guest bed at night. No more apologizing for a thin mattress on the floor, and no more cramming a blow-up bed behind the door. The pull-out sofa honestly saved my social life.

But a pull-out sofa is only as good as its sleep surface. That thin foam that comes with cheap models will have your guests complaining before breakfast. I swapped out the standard insert for a separate 16 cm foam mattress with a medium firmness rating.