Nyctophilia: A preference for the night or darkness

Hello Darkness
my old friend
you’ve come to haunt me
once again
with memories
and thoughts that never end . . .

Keeping me awake
all night
never giving up
that fight
until our nemesis rises
chasing you off
into her morning light!

Sleep is so difficult to find when you’re unable to control your mind. Ha! That wasn’t part of the poem but it sounded good in my head. Maybe I’ll build on it.