Excerpted from 55 and Out, Life Optimization
The 9 PM Rule That Fixed My Sleep
· 3 min read
For two years I read every sleep book on the shelf. I bought the rings and the mattresses and the cooling pads. I tried the meditations. I tried the magnesium. My sleep was fine but never great, and I always woke up at 3 AM with my mind running.
Then I tried one thing: no screens in the bedroom after 9 PM. Not "less screens." Not "blue-light filter on." Zero. The phone charges in the kitchen. The iPad lives in the office. The TV in the bedroom got moved to the den a month later because we never used it after the rule started.
That's the whole rule. It took about a week to feel different and about a month to feel like a different person.
What I do at 9 PM instead: read a paper book, talk to my wife, take a walk if it's warm, sit on the porch if it isn't. Sometimes nothing. Sometimes I'm in bed asleep by 9:45.
What surprised me: I thought the issue was the blue light. It wasn't. It was the content — the small stress hits from email, the algorithmic dopamine, the news. Strip that away and the body knows what to do. The blue-light filter was treating a symptom of a habit. Removing the device removed the habit.
What broke: weekends were hard at first. We were used to watching a show in bed. We replaced it with watching the show on the couch — same show, different room — and going up to bed when it ended. Sleep got better immediately because the bedroom went back to being for sleep.
What I'd do again: this, and only this. I gave away the cooling pad. The rings collect dust in a drawer. The magnesium is fine but I can't tell if it does anything. The 9 PM rule does everything.
A note: this only worked because my wife agreed to do it with me. If your partner is scrolling next to you, the rule is twice as hard. Have the conversation first.