Criticise sleeping place after change of heart (5)
I believe the answer is:
roast
'criticise sleeping' is the definition.
'roast' can be an answer for 'criticise' (I've seen this before). I am unsure of the 'sleeping' bit.
'place after change of heart' is the wordplay.
'place after' becomes 'ro' (I can't justify this - if you can you should give a lot more credence to this answer).
'change' becomes 'haste' (haste is a kind of change).
'of heart' means to look at the middle letters (I've seen 'heart of' mean this).
The centre of 'haste' is 'ast'.
'ro'+'ast'='ROAST'
(Other definitions for roast that I've seen before include "open-air party in US" , "Oven joint" , "burn?" , "The Sunday -----, with all the trimmings!" , "Pull to pieces" .)