Since college I have stayed up pretty late and gotten up late. My wife generally goes to bed around 10 or 11, and I am more in the range of 12 or 1 AM. However, the past few months I had some worse sleep hygiene. I was staying up late reading random stuff on the internet, or worse, watching Netflix or even video game streams. I would tell myself that I could go to bed at the next half-hour increment, and then blow through that. It would generally take me some time to fall asleep because I had watched something interesting, thought about engaging things, or just been exposed to a lot of light. My sleep quality would be worse than if I had done non-stimulating activities before bed. The next morning I would wake up and be annoyed that I had wasted that time. The next day I would be pretty wiped and irritable.
The process was a bit cyclical. I would stay late at work because I had gotten in later, and then it would be dark. I would be less likely to exercise and had a lot of energy at night. And on and on.
Taking charge
I realized that something had to change.
My plan was to commit to stop using my computer at around 10 PM. I reasoned that there was nothing that required me to use the computer after that point unless I made poor life decisions. If I truly needed to be on the computer, I either put things off too much or had an emergency that better engineering or planning could fix.