Catch some z's (3)
(Other definitions for nap that I've seen before include "A brief informal sleep" , "Racing tip that claims to be a certainty" , "Quick sleep; raised pile" , "raised bits of velvet" , "A short day-sleep" .)
(Other definitions for sleep that I've seen before include "Produced (egg)" , "Be dormant" , "crash" , "Slumber" , "''... that knits up the ravell'd sleeve of care'' (Macbeth)" .)