The #1 supplement for fixing your sleep isn’t melatonin, magnesium, or red light. People try red light bulbs in their bedroom. They cut caffeine. They take magnesium glycinate. But they still wake up at 3am wired—or can’t fall asleep at all. That’s because the root problem isn’t light, or even cortisol. It’s your broken circadian rhythm, and the reason it’s broken is simple: your cells are running low on NAD+. NAD+ is a coenzyme your body naturally makes, but stress, aging, and even blue light drain your levels FAST. Without NAD+, your internal clock gets totally thrown off. Your brain can’t distinguish night from day. And no supplement in the world will fix that until you fix your cellular energy first. NAD+ is what resets your biological clock. It helps your cells sync back to natural light/dark cycles, boosts deep sleep, and brings cortisol down at night where it belongs. I’ve had patients in their 30s and 40s who said: “I’ve tried everything—nothing worked until I started taking NAD+.” Three weeks later, they’re sleeping through the night. No 2am anxiety, no wired-but-tired. Just real, restorative sleep. The one I use and recommend is NAD+ Advanced by Cata-Kor. It’s ultra-pure, bioavailable, and third-party tested here in the U.S. (You can find it in my profile—use code NADSBN for a discount.) Don’t waste your time on blue-light blockers and bedroom gimmicks. If your sleep feels broken, start where your body actually needs help—at the cellular level.
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