overnighter
overnight
stay over
sleep over
night owl
sleep in
dormouse
night
slumberer
night person
over
nightlong
daysleeper
sleep camel
star clock
waker
sleeptime
lucifugous
pernoctation
lychnobite
day
shuteye
fast
hang about
shut-eye
nightish
somniferously
bedfast
idler
burn the candle at both ends
slugabed
at all hours
nap
catnap
sit up with
unscoffed
all-night
crash
somnambulize
lier
nights
whittler
delayer
Eleotridae
burn the midnight oil
family Eleotridae
nocturnalism
nightshifter
noctambulist
hang around
staymaker
stiller
tire out
pernoctate
be on nights
snoozer
mope
undern
gonk
dilly-dallier
lounger
tire
dallier
dillydallier
bed
belate
asleep at the wheel
nonsleeper
cunctator
long-haired dictionary
you'll be late for your own funeral
nighthawk
rest
get off
bedtime
nod off
postponer
procrastinator
transient
pillow dictionary
small hours
wee small hours
zizz
napping
sleep inducer
seminocturnal
sleep-in
eveninglike
day lark
tail dragger