I haven’t slept or I haven’t been sleeping for 2 days
I’m just wondering what is the difference between the following 2 sentences?

I haven’t slept for 2 days. I haven’t been sleeping for 2 days.

The context is about someone regrets about a mistake he has made.

and when can I use each of them?

Question

I haven’t slept or I haven’t been sleeping for 2 days
I’m just wondering what is the difference between the following 2 sentences?

I haven’t slept for 2 days. I haven’t been sleeping for 2 days.

The context is about someone regrets about a mistake he has made.

and when can I use each of them?

Answer

If it's due to regret, then your first sentence is more correct. 
The difference between the two depends on the context. "I haven't slept for 2 days" could be a situation where someone has been too busy or too stressed to sleep at all during the past 48 hours. "I haven't been sleeping (well) for 2 days" could imply that someone has slept poorly the last two nights. They slept some, but not enough or not their usual amount.

Answer

"I haven't slept in 2 days."

Answer

I haven’t slept for 2 days. -refers to the time in which you normally sleep

I haven’t been sleeping for 2 days -  refers to the entire length of time, meaning the entire past 48 hours

Answer

I haven't slept for 2 days

Answers · 4

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