Carpet feature (3)
I believe the answer is:
nap
'carpet feature' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for nap that I've seen before include "A brief snooze" , "soft, fluffy surface" , "raised bits of velvet" , "A short sleep or snooze" , "A brief sleep, forty winks" .)