Tonton Streaming Open All Hours (1976) S1E2 - A Mattress on Wheels

Fed up with having to do deliveries in all weathers on his bike, Granville suggests Arkwright invest in a van. Needless to say, his uncle balks at the expense until Granville points out that it could be a mattress on wheels, a means of impressing Nurse Gladys. Arkwright buys a secondhand one and Granville wishes he hadn't when he takes it out on the road.