I’ve tried things like that. I’ve tried the “use the bed only for sleep, nothing else.” When I undertook that one, I bought a new mattress, pillows, and sheets, and moved the bed to a different position in the room. I DID NOT get into bed for anything bed sleep (I wasn’t married at the time, and didn’t even have an SO). No success.
I have a bedtime routine. Not sure to what degree the routine helps, but I think going to bed at the same time every night helps.
Something I’ve always been told is forbidden is having the TV on, but noise helps; a familiar show helps-- a new show where I’m excited and following the plot intently is wrong, but a playlist on the DVR of favorite episodes of a variety of shows-- or even several episodes of just one show, helps. My TV has two features that are great: one is automatic shut-off (can choose 6, 4, 2, 1, or 1/2 hours); it also had a “screen black.” When that is on, there’s no picture, just the dialogue. It resets when the TV has been off, so if I have it blacked and set for a 2-hr shut-off, the next time I turn it on, the picture is back.
I need some kind of noise, otherwise my thoughts race. Occasionally I play music, but music tends to get me thinking about things more than the 30th time with the same TBBT episode. If it’s raining really hard, especially if it’s storming, that will put me to sleep. I just recently discovered that there are YouTube channels that will play 10 hrs of recording of rainstorms, because they help a lot of people fall asleep.
'Course, what really helps is medication. I take an insomnia cocktail, none of which are sedatives, narcotics or hypnotics. One is a seizure medication I take a pretty high dose of, and I’ve never had a seizure, but I have irregular brainwave just before I go into REM sleep, which frequently rouse me enough to prevent me from going into REM sleep, and the seizure medication seems to fix this. I have an antipsychotic, taken in a minuscule dose, that wouldn’t actually help if I were psychotic; I have a tricyclic antidepressant, also in a small dose-- my REM phases last longer when I take it.
I also have a dose of short-acting Wellbutrin in the morning, that I take at a specific time in the morning to make my point of greatest wakefulness occur at a certain time in relation to my bedtime. The idea of it is to make it predictable when I will be the most ready for sleep-- too early, and I’m not depleted of the neurotransmitters that make me wakeful, nor producing sleep hormones, but too late, and I experience the “second wind” phenomenon.
I also take OTC melatonin.
I used to take Detrol so I wouldn’t wake up to pee, but after I had a procedure on my bladder, I didn’t need it anymore.
I check my blood sugar before I go to bed. I want it a little over 100. I have discovered that if it falls below 60 while I’m sleeping, I wake up.