сонливость

сонливость

Drowsiness.

Here, 'сонливость' describes the state of feeling sleepy, as a reaction to fatigue.

Я чувствую сонливость после долгого рабочего дня.

I feel drowsy after a long workday.

In this sentence, 'сонливость' refers to the general condition of drowsiness as scientifically explicable.

Сонливость в утренние часы может быть вызвана недостатком сна.

Drowsiness in the morning hours may be caused by lack of sleep.

The word 'сонливость' is used to describe someone's observable state of being sleepy.

Его сонливость стала заметна во время встречи.

His drowsiness became noticeable during the meeting.