Answer:

SLEEPYEYED

Answer	Crossword Clue
SLEEPYEYED	Half-awake
SLEEPYEYED	About to crash?
SLEEPYEYED	Ready to doze

SLEEPYEYED	Unalert, in a way
SLEEPYEYED	About to drop off
SLEEPYEYED	Having trouble staying up
SLEEPYEYED	About to crash, apparently

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.