I mean, “days” is vague

48 hours without sleep and it’s obvious, you can’t hide it

By 72 hrs microsleeps start happening, your brain will have a 2-3 minute dream in under five seconds of zoning out, this is where methheads are when they randomly accuse people of saying/doing something.

They had a micro sleep and in their dream you did something.

Close to 100 hrs I had visual hallucinations that were obvious hallucinations, and I tapped out around 105ish.

It’s insanely dangerous and you really shouldn’t try it. Even if it sounds “cool” it’s not an enjoyable experience, but it is an experience. Definitely under no circumstances use stimulates to stay awake that long. If you try to do it naturally and can’t, just accept that you couldn’t and move on.

And if you do try it, don’t have anything planned for during or a day or two after. Don’t expect yourself to handle anything competently after the first night missed sleep, although during that time you will likely think you’re killing it, that’s just because you’re not thinking straight. You’re really fucking up almost everything you do and just not noticing.