apnea
awake
awaken
concept
conceptual
concerns
dark
darkness
depressed
depression
depressive
disorder
distraught
disturbed
exhausted
exhaustion
eyes
fatigue
hands
health
illness
insomnia
looking
male
man
night
nightmare
one
open
opened
people
person
problem
problems
sick
sickness
sleep
sleepless
staring
stress
stressed
tired
troubled
vigil
worried
worries