Indian man sleeps 300 days a year. https://www.indiatoday.in/india/sto...xis-hypersomnia-kumbhkarna-1829228-2021-07-17 From (£) https://www.thetimes.co.uk/article/...-sleeps-for-three-weeks-out-of-four-qg89w9v9l
There is absolutely no way that psychology could account for so much sleep. Just like narcolepsy and fatal insomnia something is going wrong in the incredibly complex brain functions that govern sleep.