Discrimination of English words

Sleep verbs. I haven't slept well recently.

I feel sleepy in hot weather.

Sleeping adverbs/adjectives indicate a state.

Adverb: I fell asleep in class.

Adjective: I was sleeping when the teacher called the roll.

Sleeping: The difference between Sleeping:sleeping is that sleeping as an adjective emphasizes an action. For example, the sleeping beauty is the beauty who sleeps with Zhe, not the beauty who sleeps with Zhao.

The beauty who sleeps on Zhao is the beauty who sleeps. Of course, it's a little too picky.

In he is sleeping, sleeping is the present participle form of the verb, indicating the ongoing action.