My buddy Mark was the worst for this, he'd be on his phone in bed until 2am. After reading @jennifera82's point about blue light, he decided to try the phone-out-of-room rule. He swapped his nightly scroll for a paperback and said it was like a switch flipped in his brain. Now he falls asleep in minutes and wakes up feeling clear headed, no more morning fog. It's crazy how such a small change made such a big difference for him.
God yes, same here. I was glued to my phone right up until my eyes shut, doomscrolling through terrible news. Swapping that for an actual book, even just a chapter, made my brain actually shut off for once. I fall asleep way faster now and the sleep feels deeper. I even remember my dreams now, which never happened before.