Japan even has a word for this: Kenjataimu:

Japanese word meaning : Period of clear thoughts when a man is free from sexual desires after having an orgasm

Translates literally from Kenja 賢者 ( Sage ) and Taimu タイム ( Time )

Interestingly enough I only hear dudes talking about this. Is this because one orgasm is enough for guys to be down and out, and clear the sexual fog out of their head? Whereas women don't really reach their orgasm limits as often as men? i.e the orgasm gap?

Also do you ever feel like a different person after sex? Like your hormones contaminated your higher thinking, but now you are free, yet only until the oxytocin wears off?