The Sleep Journal

Sleep Journal

Research, habits and science for people who take sleep seriously.

Magnesium-rich foods including almonds, spinach, pumpkin seeds and dark chocolate on a linen surface
Magnesium and Sleep: What the Research Actually Shows
Magnesium is everywhere in sleep content right now. Here's what peer-reviewed research actually says about magnesium and sleep quality, and what it doesn't. Read more...
Chronic Insomnia Is Aging Your Brain: What a Major New Study Means for Your Sleep
Chronic Insomnia Is Aging Your Brain: What a Major New Study Means for Your Sleep
If you've ever spent the small hours of the morning staring at the ceiling, you'll know that insomnia feels bad in the moment. What a growing wave of research now... Read more...
How to Protect Your Sleep Quality When You Cannot Protect Your Sleep Hours
How to Protect Your Sleep Quality When You Cannot Protect Your Sleep Hours
When fragmented sleep is unavoidable, the goal isn't more hours — it's making every hour you do get count. Read more...
The Real Reason You Cannot Fall Asleep and It Has Nothing to Do With Stress
The Real Reason You Cannot Fall Asleep and It Has Nothing to Do With Stress
Lying awake for 30, 45, 60 minutes usually isn't about stress — it's a body that's never been given a clear enough signal to switch off. Read more...
5 Sleep Habits That Separate High Performers From Everyone Else
5 Sleep Habits That Separate High Performers From Everyone Else
High performers aren't sleeping less — they're protecting five specific habits that keep sleep quality consistent night after night. Read more...
Why Your Circadian Rhythm Is the Most Important Thing You Are Not Thinking About
Why Your Circadian Rhythm Is the Most Important Thing You Are Not Thinking About
Your 24-hour internal clock decides how well you sleep, and light exposure is the single biggest signal that throws it off. Read more...
Why Athletes Treat Sleep as Training (And What the Rest of Us Can Learn From It)
Why Athletes Treat Sleep as Training (And What the Rest of Us Can Learn From It)
Elite athletes have treated sleep as a competitive advantage for years — here's the science behind why, and what it means for the rest of us. Read more...
The Science of Mouth Breathing at Night and Why It Is Ruining Your Sleep
The Science of Mouth Breathing at Night and Why It Is Ruining Your Sleep
Most people who mouth-breathe at night have no idea it's happening — and it comes with a real cost to sleep quality. Read more...