Keys to resting-place (3)

I believe the answer is:
bed
'place' is the definition.
(bedding is a kind of placing)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for bed that I've seen before include "In which to place the body of flowers" , "Bottom < layer" , "Bottom of the sea or river" , "Divan" , "Couch" .)