How Buddhist philosophy can explain the sleep

As buddha explain pattichasamutpada…plus there are abhidhama text such as tikpatthan. Buddha or other monks didn’t talk about what happened in deep sleep.
how we can describe the State of deep sleeping according to pattichasamutpada or any abhidhama system ??

Does mind stops in deep sleep…

I do not understand plz help …

Torpor is a hindrance to meditation because it restricts the mind :

“And how is desire inwardly restricted? Whatever desire is accompanied by sloth & drowsiness, conjoined with sloth & drowsiness, that is called inwardly restricted desire.”—Samyutta Nikaya 51.20

The third foundation of mindfulness is concerned with identification of the state of mind:

“When the mind is constricted, he discerns that the mind is constricted. When the mind is scattered, he discerns that the mind is scattered.”—Majhima Nikaya 10

The aim of meditation is to keep the mind balanced:

""He develops the base of power endowed with concentration founded on discrimination & the fabrications of exertion, thinking, ‘This discrimination of mine will be neither overly sluggish nor overly active, neither inwardly restricted nor outwardly scattered.’—Samyutta Nikaya 51.20

This balance is known as a ‘base of power’ as with others it results in supranormal powers, such as knowing the mind-states of others.

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  1. If there is no perceptual activity, as is the case in deep, dreamless sleep, the mind is in a state of rest called inactive mode (bhavaṅga). Throughout one’s life, the same type of citta performs this function of the inactive mind that is the natural mode to which the mind reverts.
  1. the mind of a puthujjana needs rest (sleep) because it is tired because of its avijja dependent tendency to generate saņkhāras of rāga, dosa, moha. sleepiness is a hindrance (thinamiddha nīvaraṇa). Most Ven. Webu Sayadaw was reputed to be an Arahat and it is said that he never slept.