What method would you recommend for a sleep schedule reset? I'm currently trying to move my fall asleep time from 4AM to 10PM.
This is very good advice. I'm sure it varies from person to person, but anecdotally it seems to be completely natural to have a mid-sleep period of wakefulness (for a bathroom trip if nothing else).
If you start worrying that it will lower the overall quality of your sleep, it definitely will. But if you just go with it, lie still, at most read a book, you will get sleepy again in short order and continue your rest. In fact, personally I (paradoxically) seem to feel more rested on the nights that I had a more noticeable/awake mid-sleep hiatus (and without spending extra time asleep).
YMMV, of course; the point is not to let a completely benign occurrence turn into tossing and turning and watching the clock because you're anxious about getting enough sleep.
I started working at 6:30 this morning, and it's amazing. I watched the sun come up outside the window and I've had almost 3 solid hours of concentration time before the interruptions start.
[1] This all assumes you do not have some medical condition.
To get your body set to a wake up time, use an alarm clock for a while. As long as you're good about your nighttime light and stimulation habits, you'll find that after a month or two you don't need the alarm anymore.
If you're already using an alarm, then clean up your nighttime habits and see if that helps.
Note: This is all my opinion on reading a lot about this. I'm not a doctor and this stuff only applies to people with otherwise normal health. If you have a sleep disorder, all bets are off.
I've been adjusting my sleep patterns over the last week or two so that I'm getting up earlier (~5am). I started out just using the iOS Alarm Clock, but through the first week or two, it was pretty hit-and-miss. Some mornings I would get up at 5, some mornings I would apparently hit snooze a bunch of times in my groggy fog and not end up getting up until 7. This was happening on a somewhat subconscious level... I wasn't consciously hitting snooze, it was just that by time an alarm actually woke me up enough to realize what time it was, it was closer to 7.
A couple of years ago I had played with Pillow[1], and started trying it out again this week. The feature where it wakes you within a half hour of your set alarm, when it detects that you're in a lighter phase of sleep... It really seems to be helping. I've nailed the 5am wake up all week and have woken up feeling quite refreshed. And like you suggest, my body is adapting and is now starting to make me feel sleepy earlier and I'm just naturally wanting to go bed.
One other thing I've noticed is that I start to feel a bit of a chill around the time I should be going to bed. It's a nice reminder if I actually pay attention to it. No clue if that has a real physiological basis or not, or if it's just some cue my body gives me.
To steal a common survival phrase - 2 is one, 1 is none. I set multiple alarms anytime I have to get up for something like a flight. Otherwise, I wake up between 6 and 7 naturally. If you're still struggling with feeling refreshed, the fix for that is working out in the morning.
Not very scientific, but Jocko Willink is a huge proponent of getting up early because that discipline sets the tone for the entire day of getting stuff done. I tend agree, but YMMV.
The real reason is more practical though. Working on a side project, and with a partner and animals, it's been hard to get things done in the evenings. She doesn't get up with me when I get up early, so I've got a couple of undisturbed hours to grind on the project. Plus, it feels really damned good to have a feeling of accomplishment every morning before heading to the office; no matter how many useless meetings and stupid shit happens, I've already move the needle on something!
Keep cranking on your side project!
The other way is to develop a sleep debt until you can sleep at your desired time, and set an alarm to prevent yourself from oversleeping and falling back in to your normal routine. This will also lose you time out of your normal schedule, and is pretty terrible-feeling to boot, but it doesn't require quite as long.
Sleep physicians or sleep therapists are good about setting this kind of stuff up, if you have reasonable and inexpensive access to medical help.
It worked for a few months, but eventually I began just hard powering down the phone and falling back asleep for hours.
Needless to say, I have never been successful at any job or school where I wasn't able to work afternoons or nights. I don't even bother applying for jobs that do a typical 9-5.
It has kind of set my life on a strange course.
And it's now almost 7am, I haven't slept, and I will probably end up staying up all day...
Sport has plenty of (somewhat archaic) meanings. "Sporting goods" stores often carry running shoes, bicycles, and weights, all of which are "sport" even if you're doing it by yourself.
I think training, and competition, rules, and some form of winning are elements of all sports.
It wasn't clear to me if they meant competitive physical activity, or not.