adult
alone
awake
bed
bedding
bedroom
day
depressed
depression
disorder
dreaming
dreamless
frustration
headache
insomnia
insomniac
lonely
lying
man
melancholy
morning
pillow
pyjamas
restless
sad
sadness
single
sleep
sleeping
sleepless
sleepy
stress
stressed
suffer
suffering
think
thinking
thoughtful
tired
tiresome
trouble
troubled
unhappy
weary
white
worried