Sleepfalling 

The little spaz attack you get when you're falling asleep and think you're actually falling.

x: Why did you just do that? Are you having a seizure?
y: No, I was just sleepfalling.

Sleepfalling by WhileyCoyote January 21, 2010

Sleepfasting 

To reduce your rest intake, to deprive oneself of sleep.

sleepfasting day today , sleepfast day, sleepfasting day today!

Sleepfasting by Goodie Tabliser May 11, 2019

Open-eyed sleepwalking

Officially named lagophthalmogic somnambulism, open-eyed sleepwalking is a condition in which a person is awake, but appears so exhausted and worn out that they may very well just be sleepwalking with their eyes open.

John: What’s wrong with Richard?
Sam: He’s open-eyed sleepwalking. He had to stay up all last night working on some ASL assignments.
John: Poor guy…

Open-eyed sleepwalking by NotPieGuy December 8, 2021

SLEEPWALKING 

Walking whilst looking at your smartphone.

This is sometimes accompanied by repeated eye flickering, as the offender attempts to navigate themselves poorly without collision.

A side-effect of smartphone addiction.

He sleepwalked right into me.

She was sleepwalking, and unaware of her surroundings.

I'm tired of constantly dodging sleepwalkers.

SLEEPWALKING by Jaytecx August 1, 2022

Sleepwalking Mexican 

1 part absenthe
1 part patron
Shake over ice and serve in sombrero

After i gave her many sleepwalking mexicans, she found out what a leaky faucet was.

Sleepwalking Mexican by Jon Jinx January 20, 2020

Sleepwalking 

Someone that is, currently well and alive, being searched for termination.

Dissin on the gang, he dont know he sleepwalking.

Sleepwalking by Webster's Dictionary (Ext.) November 5, 2022

YouTube Sleepwalking 

When you fall asleep watching YouTube only to find the next day that you've ended up on a different channel you don't even recognize. This is usually the result of leaving autoplay on.

Matthew: Dude, I was YouTube Sleepwalking last night...
Chris: Really?
Matthew: Yeah. I was watching a let's play. When I woke up, my phone was playing some porn video!

YouTube Sleepwalking by ThatInternetDweller February 12, 2017