[hnick]

People tend to wake earlier as they age, maybe that helped?

I've noticed it already in my 30s, I can no longer sleep in so easily and have to get up, even if I'm tired.

Unfortunately it is because older people tend to have poorer sleep quality in general (less time in deep sleep cycles) so that's a pretty big downside.

[LameRubberDucky]

Possibly but I don't think so in my case. I've worked 9:30 am - 6:30 pm or later for most of my 25 year career. Stayed up until 2 am every night pretty much.

I really did force the change for myself and it totally sucked going through it. I still don't just jump out of bed and feel instantly great. It takes 30 minutes or so to get fully awake. For example, this morning I so did not want to get up because I stayed up until 1 am. However, I did get up at 5:30 am anyway. It was awful and I'm dragging today. Caffeine helps as well.