unsleepy

un- +‎ sleepy

unsleepy (comparative more unsleepy, superlative most unsleepy)

1. Not sleepy; wakeful.
   • 2007 July 28, Rivka Galchen, “My Mother, Myself”, in New York Times‎:

     My seemingly endless medical school days of gleelessly skipping lectures and spending far too many hours on crosswords, of obsessive toast eating and long hostile runs after which I’d get into bed unsleepy at 8 p.m. simply hoping to bring the day to a close a little bit earlier — that would all be over soon, for a year at least.

• unsleepily
• unsleepiness