You need your sleep for your COGNITIVE
processing to perform at optimum levels.
The Big Bang Theory Season 2, Episode 6
Cognitive... l-l-lock.
Westworld Season 2, Episode 4
...pressing on the COGNITIVE
processing centers of your brain."
The Big Bang Theory Season 1, Episode 10
...which is required for COGNITIVE
reasoning, including scientific inquiry...
The Big Bang Theory Season 4, Episode 3