6. The Irritability
The 9 Stages Of Sleep Deprivation Stage 6  - Image 1

Man, it's like everyone around you are suddenly stupid jerk faces. here you are trying really hard to concentrate on this important assignment project thing you can't fully remember and it's like Mr. Sandman over there doesn't even care! He's just yelling Carly Rae Jepsen lyrics like he owns the place!