How does 4-FA affect your sleep?

4-FA is an upper and has a stimulating effect on the body. As a result, you can sometimes not sleep for hours after use, we also call this “a ceiling shift”. Although translated to English it sounds a bit weird 😉 You lie in your bed and look at the ceiling because you can’t sleep. Why can’t you sleep? And if you do manage to fall asleep after stimulants, how well do you sleep? Read that in the article How do you rest after stimulants?