Sleep hygiene has been mentioned, but it really only gets a passing mention. This is a big deal. By now, we all know not to lay there with bright lights and scrolling social media before bed.
But I was listening to a Rhonda Patrick podcast where she's interviewing a CBT-I therapist recently. The real deal is to never use your bed for scrolling, working, watching TV, etc... even during the daytime.
Your brain makes associations and patterns based on experience. So the more time you spend in your bed stimulating your brain with content, entertainment, work stress, etc, the more your brain associates your bed as a place to be active.
So I tried it. The only reasons I'm ever in bed now are sleep and sex. I can read a few pages of a novel until I can't keep my eyes open, and that's it. Saturday mornings I used to wake up and browse the internet... nope. Get your ass up and go to the living room to look at your phone. Wake up in the middle of the night? Don't even think about looking at the damn phone, and if you do, go to another room. Make your bed a sanctuary for sleep and nothing else.
It works. I was always the one to wake up at 2 am with my mind racing about work. That has almost entirely stopped.