It depends. I am a night owl and if I wake up too soon I am really useless for almost the whole day. Instead waking up later than usual (like 11-12am) makes me hyper-productive until late night.
I guess each person has a different time of best performance, the problem is when you get a job in a office without flexible hours.
I tried to delude myself for years, telling myself that I'm not a "morning person". It was just an excuse to stay up late and watch garbage on the TV or scroll endlessly through Reddit.
Since I've forced myself to go to sleep no later than 11, I've realized that hey, I actually am a morning person.
I find my creativity peaks after 1 A.M.if I’ve been able to get into a state of flow. I’m certainly not at my most productive, but for work which isn’t time critical it’s a useful tool.
I guess each person has a different time of best performance, the problem is when you get a job in a office without flexible hours.