Definition

Noun: A piece of furniture designed as a sofa for seating that can be converted into a bed for sleeping.

Usage

A "sofa bed" is used to describe a dual-purpose piece of furniture. It functions primarily as a sofa but can be transformed into a bed, typically by unfolding or extending a hidden mattress. This term is used when discussing furniture, interior design, or practical solutions for small living spaces or guest accommodations.

Examples

• We bought a sofa bed for the guest room so visitors can sleep comfortably.
• The apartment is small, so my sofa bed serves as both a couch and my bed.
• This model is a very comfortable sofa bed; you can't even tell it's a bed when it's folded up.

Advanced Usage

• "Convertible sofa": A more formal or technical term sometimes used interchangeably with "sofa bed," emphasizing its transforming function.
• "Pull-out sofa": A common variant describing a sofa bed where the mattress is stored inside the frame and pulls out from underneath the seating cushions.

Variants and Related Words

• Hide-a-bed: (noun, informal/trademark) A brand name that has become a generic term for a type of sofa bed.
• Daybed: (noun) A different piece of furniture that can function as both a couch and a bed, but typically lacks the full enclosing structure of a traditional sofa.
• Futon: (noun) A Japanese-style mattress that can be folded and used as seating; in Western contexts, it often refers to a simple wooden frame that holds such a mattress, converting from a couch to a bed.

Synonyms

• Sleeper sofa
• Convertible couch
• Bed settee (less common)

Related Phrases

• "Sofa bed mattress": Refers specifically to the mattress component of the sofa bed, which is often a different size or style than a standard bed mattress.
• "Sofa bed mechanism": Refers to the folding or sliding hardware that allows the conversion from sofa to bed.

Noun

1. a sofa that can be converted into a bed