fatal familial insomnia (ffi) 

something that literally traumatized the haikyuu fandom forever. its a rare disorder that affects the part of your brain that controls the sleeping cycle. patients usually die from it within year or two. something used in a bokuaka fanfiction, (bokuto x akaashi) and it killed akaashi's lover forever and now we're all emotionally numb

person: hey whats fatal familial insomnia (ffi) ?
yes, it means fatal familial insomnia and that means an illness that kills you overtime from weight loss, dementia, and sleep deprivation basically.

*crying noises*

fatal familial insomnia (ffi) by no that is not a disease January 3, 2021

insomnia 

The inability to sleep, because your body and the universe teamed up and decided to hate you.

Tess: I can never get to sleep! Argh, this insomnia is driving me crazy.
Elle: Have you tried warm milk? Ooh, or turning your pillow over? Because that always helps me.
Tess: ....do you KNOW the meaning of insomnia?

insomnia by SleeplessInMelbourne December 9, 2010

insomaniac 

One who cannot sleep, or one who will keep waking up in the night due to their lack of sanity.

"Bryan got no sleep last night, the voices in his head kept him awake".
"He has insomnia?"
"Worse, he's an insomaniac"

insomaniac by Nobodylikesmelol November 7, 2018

insomania 

The addiction of not wanting to sleep anymore. Usually due to the feeling it's a general loss of time and a belief it's possible to live without.

Damn he's been staying awake for four days now, he's really got insomania.

insomania by Nephatiu July 26, 2014

Gamer's Insomnia 

n. The common illness amoung gamers when a temporary psychological addiction to a video game causes lack of sleep for anywhere between 24-48 hours. Most commonly found in WoW players as a chronic disease.

Justin: Hey Waylon, how's that new game treating you?
Waylon: -Drools.-
Justin: Damn dude, it looks like you have a bad case of Gamer's Insomnia.

Gamer's Insomnia by Verroxi February 13, 2010

insomniphobia 

Insomniphobia occurs when you are lying in bed, but you can't sleep (insomnia). When a person is insomniphobic, it means that the person has a fear of not being able to sleep. They might fear insomnia because they know if they don't sleep they will be tired the next day, or maybe they have a big test the next day. The side effects of insomniphobia include constantly checking your phone to see what time it is, restlessness, sweating, and like any other phobias, anxiety and stress.

I had a major case of insomniphobia last night. I was afraid I woudn't be able to sleep before that big test I'm taking today.

insomniphobia by asexyunicorn June 22, 2014

Self Inflicted Insomnia 

Also know as SII. Self Inflicted Insomnia is a basic lack of sleep caused by your own boredom and lack of interest in sleep. People with Self Inflicted Insomnia could sleep if they so desired, but they don't care to, so they stay up as long as possible, sometimes for days.

A person with SII doesn't necessarily need a reason to stay up. Usually people with this disorder spend their time on the internet, even if there is nothing to do. They'd rather stare at a wall than close their eyes.

Person 1: I never see you log off, do you ever sleep?
Person 2: No, I have Self Inflicted Insomnia.

Person 1: So you can't sleep? That sucks.
Person 2: I just don't want to, plus my cat is making cute faces at me.

Self Inflicted Insomnia by iproxii June 24, 2011