sunday night insomnia 

The inability to fall asleep at a resonable time due to staying up all night Friday and Saturday

Friend: Dude, why are you so tired?
You: I got 4 hours of sleep cause of sunday night insomnia.

sunday night insomnia by Kitkat71093 January 19, 2009

insomnicum

The act of masturbating when you have trouble sleeping. Trying to get more tired by masturbating.

ex 1:

Person A: Hey, how did you sleep?

Person B: Bad, at least until I unsomnicame.

ex 2:

Person A: Hey, I can't sleep.

Person B: Why don't you try to insomnicum.

insomnicum by wHY_CAnt-i_sLeeP? June 13, 2010

Insomnia Thoughts 

Thoughts one has while trying to get to sleep. Usually it keeps them up at night, whether it be because of stress, fear, endearment, or without an explanation.

"Dude, Rebecca has been giving me insomnia thoughts."
"Dude, me too."
"Like dude where's my sleep, you know."
"I know, dude. I know."

Insomnia Thoughts by I love cows. August 2, 2018

insomnity

The insanity that follows after several nights of being unable to sleep. Usually involves some kind of out-of-body experience or hallucination.
See: Fight Club

Oh, no, I think the insomnity's kicking in...

insomnity by Grokthought March 4, 2009

Insomnabation 

Not being able to sleep because you love to masturbate.

I could not sleep all week because I got insomnabation.

Insomnabation by Spearchuckin Tarbaby November 9, 2009

insomnambulation

Also "insomnambulism"

The act of wandering around your house at night because you can't sleep.

A portmanteau of insomnia (habitual sleeplessness or the inability to sleep) and somnambulism/somnambulation (sleepwalking or performing other acts while asleep).

Jeff: Dude, were you wandering around the apartment last night? I swear I heard you walk past my door twenty times.
Gary: Sorry man, I couldn't sleep, so I was wandering around the apartment.
Jeff: Next time, can you try to confine you insomnambulation to one room?

insomnambulation by MrGryphon April 21, 2013

insomnia 

Inability to shut off the brain.
Failure to tone down or turn off the noise in your head.

Sleeplessness that results from thoughts that are captured in a continuous segue, e.g., the wikipedia snowball effect.

Insomnia nights can make your brain physically hurt the next day.

JJ's Definition of insomnia: My brain in wikipedia mode.

Couldn't sleep again last night....Couldn't shut off my brain.

Insomnia: I took the red pill last night.

insomnia by Turn Yourself Around October 18, 2008