I used to have sleep issues but generally now ok.
We bought a super king size bed, spent time working out what duvet / pillows we needed. Spent a few hours searching for the right mattress.
We have no tv in the bedroom and electronics are put far away.
I also turn off the broadband at night.
2-3 caffine drinks in the morning to early afternoon only.
At times I’ve also read a book whilst in bed, it’s amazing how hard it gets to not get sleepy.
On occasion I still write down a list if I have things playing on my mind and how ill tackle them the next day.
Sleep tea helps too.
Some evenings, we have the lights off, fire on and let it get dark with the sunset, it makes it feel later earlier and everything feels calmer.
Stopped watching the tv/news.
If I really struggle then there is a mix I play at very low volume called Relaxing Sleep 2021 - firs track is water ambience. Very peaceful.
For me to get 8 hours of sleep, I need to be in bed 9 hours before I wake up, otherwise my mind will start thinking about it more than it should.