From Longman Dictionary of Contemporary Englishsingle bed/room etcsingle bed/room etcDHa bed, room etc that is meant to be used by one person only You have to pay extra for a single room. → double1(4) → single
Examples from the Corpus
single bed/room etc• Additional night, single room and upgrade prices are available.• Lounge / dining / kitchen areas with seating which converts to a double or two single beds are required.• One of the important things to take into account when designing single bed Fair Isle patterns is the length of the floats.• His own family-seven strong-live in a single room in the house.• A single room supplement of £8 per person per night applies at hotels indicated.• Supplements per person per night: No single room supplement.• Supplements per person per night: No supplement in single rooms without private facilities.