1 month or more
No
I learned that I keep a pretty rigid schedule: I go to sleep between 2 AM and 3 AM and sleep like a log (probably exhausted) and wake up to two alarm clocks at c. 8 AM and that most of the time I fall asleep again for about 1/2 hour then get up. I learned that yes I do drink coffee during the evening and that it doesn't keep me from going to sleep. I have always been someone who doesn't like to go to sleep early and I've always slept through the night. I don't need pills to go to sleep. But the thing is, I have always known all this about my sleep habits and so I haven't learned anything new.
No. I can't exercise because of my knees. I won't give up that cup of coffee in the evening and I don't want to go to sleep earlier. On the other hand, I wish I had a longer night's sleep than 6 or so hours per night. Don't know how I'm going to accomplish that.