This may sound silly, but it’s worked for me this summer when I need to get up early, and it’s already pretty late at night. I chug 2 or 3 glasses of milk before going to bed.
This has several effects at once: (1) when I get up, I stay up cause I gotta run to the john - the few extra moments I have to consciously tell myself to stay up, (2) since I became lactose intolerant about 10 years ago, I get the added benefit of ‘cleansing my system’ (I’ll save you the details), and (3) milk does a body good. And (4), I love milk products, but this doesn’t work so well with those yogurt drinks
The trouble for me is that milk is expensive. I used this to start an early schedule habit. It worked. So even though I get to bed at around 1:00 am, I’m up at 5:30 am every day. And I don’t have to chug my milk and hit the john anymore.
WARNING: As has been repeated here, regular 4 to 5 hours of sleep, while possible, is no where near as good for you as 7 to 8 hours of sleep.
So, I’ve noticed some negative effects since I started my low sleep habits this summer: (1) stress is up, (2) weight is up, which together means (3) health is down. My back started acting up “all of a sudden” and I started having some nose-throat issues (colds) – and this is not flu season. Flu season starts officially on 17 September.
I believe if I sleep more, I can address my health problems. This means sleeping earlier. My GF also warned me about the midnight to 3 am period. So If I hit the sack at 11, I up my daily sleep quota almost 50%, and I’m still up before 6 (since my wake up habit holds)
As I said above, it’s worked for me