Crossword Genius

The rest, bustling, carried in rugs destined for the bedroom (8)

Ross

I believe the answer is:

mattress

I'm a little stuck... Click here to teach me more about this clue!

'the bedroom' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe there's an association between them I don't understand?

'the rest bustling carried in rugs destined' is the wordplay.
I cannot really see how this works, but
an anagram of 'rest' is 'tres' which is within the answer.
'rugs' could be 'mats' (I've seen this before) and 'mats' is located in the remaining letters.
No letters remain.
This may be the basis of clue (or it may be nonsense).

'for' is the link.

Can you help me to learn more?

(Other definitions for mattress that I've seen before include "Smartest kind of bed-base" , "Padded bag on which to sleep" , "Palliasse" , "Pad to sleep on" , "Sleeping support" .)

I've seen this clue in the Evening Standard.
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