Question

Which one is right and why?

He is no longer sleeping.
Il ne dors pas plus.
Il ne dort pas.
Il ne dort pas encore.
Il ne dort plus.

Answer 1

Il ne dort plus
That's mean he is no longer sleeping

It why I choose it
You can believe me because I speak French

Hopes it help

Answer 2

the first one means, "He does not sleep anymore", and the second one is "He is not sleeping". im not sure which one is right tho.