slumber

catch some Z''s kip log Z''s sleep

dormancy physical condition physiological condition physiological state quiescence quiescency rest

aestivate bundle catch a wink catnap estivate hibernate hole up nap nonrapid eye movement nonrapid eye movement sleep NREM NREM sleep orthodox sleep paradoxical sleep practice bundling rapid eye movement rapid eye movement sleep REM REM sleep shuteye sleep in sleep late sleeping