Sleeplackey

(n) (adj) - someone who stays awake at night till the morning

- a person who sleeps for less than five hours a day

- a person who lacks sleep
(v) - intentional or not, lacking sleep

(n) Rain is a sleeplackey. He always stays up all night.
(adj) Ryu is a sleeplackey girl.
(v) I sleeplackeyed because of three projects in my classes. I hate eyebags!