Thanks. Just to dig the hole deeper for myself - I used to have a terrible time falling asleep when I was younger.
For the past 20 years though I sleep like a baby every night. If I wake up in the middle of the night (normally due to one of my 3 children or my wife), I fall back asleep with no problem.
Honestly the only thing I did differently was I managed to convince myself that I am a great sleeper. I found the thing that was keeping me up nights was worrying about how much sleep I was going to eke out that night.
I'm sure someone will now say how arrogant and smug I am because they have a disorder that causes them to smack themselves in the face every 10 seconds which makes good sleep impossible.
i already have a preconception that i'll forget about everything if i don't write it down.
I purposely write nothing down temporarily. I deal with CUSIPs at work a lot and I will purposely memorize them for short time periods instead of copying/pasting them because I find the more I do it, the better I am at it.