So, by all means, if you are are sleepy, it is recommended that you take a nap, without forgetting to set an alarm!
The 3rd of February is
Lack of Sleep Day!
The date is a pun:
Lack of sleep/insomnia → fumin → fumi(n) → fu(2) mi(3).
It is said that persistent lack of sleep not only leads to a decline in concentration and memory, thus reducing productivity, but also makes one more sensitive in their personal relationships and more irritable in general.
13:30... That has to be wrong, right? Ghost-Half was supposed to wake me up after 15 minutes...
Even a 15-to-20-minutes nap can have a great effect in reducing the impairment in functionality caused by lack of sleep.