AKT-4389

A 21-year-old man comes to your clinic for an appointment scheduled by his father, who is worried about his son’s lack of sleep.

During the consultation, the patient reveals that he no longer feels the need to sleep for more than 2-3 hours. He appears talkative and mentions that he has been staying up late to work on an online business that he believes will bring him a lot of money. He expresses annoyance at people questioning him, especially since he usually feels low in mood but now feels much better. There are no reports of delusions or hallucinations.

What is the most probable diagnosis?