burn the candle at both ends
get up with the chickens
at all hours
SOL
sleep in
power nap
undersleep
go to bed with the sun
go to bed with the chickens
early to bed, early to rise, makes a man healthy, wealthy and wise
overnap
go out like a light
sleep late
outsleep
beauty sleep
sleep-in
nod off
sleepward
sloom
call
run behind
awake
doze off
fall asleep
knock out
nap
sack out
night owl
keep good hours
sleepytime
unsleep
oversleep
doze
snooze
drowse
reawaken
zonk out
woken
snooze off
tire
sleep deprivation
dreamward
stay up
get on
dead on one's feet
outwoke
sleep debt
bedrowse
micronap
rest
kip
slumberous
unsleepful
delayed sleep phase disorder
nappy
somnolently
zonk
nod out
oh dark thirty
waken
stir
play possum
up with the chickens
dogsleep
wee small hours
unsleepy
somnify
awaken
arousal
fall behind
small hours
until all hours
up with the lark
take a nap
somnambulize
lucifugous
unwakeful
nod
zzz
bed
conk out
somniferously
sleep dep
sweet dreams
dormouse
soporific
shut-eye
shuteye
sleepy
insonication
sleep in heavenly peace