Inflatable mattress (3-3)

I think it could be either:

Which length description are you looking for?:

3-3

air-bed

'inflatable mattress' is the definition.
(I've seen this before)

This is the entire clue.

I've seen this clue in The Telegraph and The Daily Mail.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.