noun
the three great desires (sleep, food, sex)
Colloquial term referring to the three fundamental human drives: sleep, appetite, and sexual desire. Often used in casual or humorous contexts.
三大欲求の中で、睡眠が一番大事だと思う。
Among the three great desires, I think sleep is the most important.
食欲と性欲と睡眠欲、これが三大欲求だ。
Appetite, sexual desire, and the need for sleep—these are the three great desires.
本能 refers to instinct in a broader biological sense, while 三大欲求 specifically names the three colloquially recognized human drives.
Compound of 三 (three), 大 (great), and 欲求 (desire). The phrase is a modern colloquial coinage, not a classical term.