County where people sleep (4)
I believe the answer is:
beds
This clue is a double definition.
'county' is the first definition.
(abbreviation for Bedfordshire)
'where people sleep' is the second definition.
(Other definitions for beds that I've seen before include "Resting places; a county (abbr.)" , "Pieces of furniture" , "area that includes Luton" , "Graduate teacher's" , "to which people may retire" .)