How Bryan Johnson Cracked the Sleep Code: 5 Simple Habits That Gave Him a Perfect Score for 8 Months

When you scroll through Bryan Johnson’s Instagram, you’ll see a lot of futuristic gadgets and bold health claims. But tucked between the sci‑fi experiments is something far simpler: a sleep routine that has earned him a flawless sleep score for eight consecutive months. If you’ve ever stared at the ceiling at 2 a.m. wondering why rest eludes you, his approach might feel almost too easy.

Johnson is not just a venture capitalist or the founder of the OS Fund—he brands himself as a “longevity expert” and, by his own admission, perhaps part of the first generation that might learn to live much longer. His latest post broke down a five‑point timing protocol that anyone can try. Below is a quick rundown, plus a few personal observations on why each step matters.

1. Cut caffeine 10‑12 hours before bedtime. Coffee, tea, even that occasional soda have a half‑life of about five to six hours in your bloodstream. That means a cup you sip at 5 p.m. is still doing its jittery dance when you finally lay your head down at 11 p.m. Johnson recommends making the last caffeinated drink of the day no later than 10 a.m. for a 10 p.m. bedtime, or at the very latest, 12 p.m. for a later night. It sounds strict, but the payoff is a calmer nervous system and a smoother transition to sleep.

2. Stop high‑intensity workouts at least six hours before lights‑out. Pushing your body hard too close to bedtime spikes adrenaline and raises core temperature—both enemies of deep sleep. Johnson suggests finishing any HIIT or heavy lifting sessions by early evening. If you prefer moderate exercise, a four‑hour buffer should suffice. A gentle walk or light stretching later can actually help, but the key is avoiding that post‑workout “rush.”

3. Finish your last meal at least four hours before you intend to sleep. Digestion is a metabolic marathon. Eating a big dinner right before bed forces your body to work overtime, spiking heart rate and blood sugar while suppressing melatonin. By putting the final bite on the plate by, say, 7 p.m. for an 11 p.m. bedtime, you give your system a chance to settle down.

4. Switch to red or amber lighting two hours before sleep. Blue light—think phone screens and LED bulbs—mimics daylight and tells your brain it’s still daytime, which stalls melatonin production. Johnson swaps out bright whites for warm amber bulbs, or even wears red‑light‑blocking glasses, creating a gentle cue for his body to start winding down.

5. Turn off every screen an hour before bedtime. The last hour before sleep should be screen‑free. Not just because of blue light, but also because scrolling through social feeds often drags you into stressful or exciting content, raising cortisol levels. Instead, Johnson recommends low‑key activities: reading a paperback, journaling, a brief meditation, or a calm walk around the house.

Implementing these habits may feel like adding a few more rules to an already busy day, but the simplicity is deceptive. It’s less about over‑hauling your lifestyle and more about tweaking timing. The results? A steady, restorative sleep that, according to Johnson’s tracking app, has stayed at a perfect 100 percent for eight months straight.

If you’ve been wrestling with fragmented sleep, consider giving Johnson’s timing protocol a try. You might find that the hardest part is simply deciding to start.