Sleep Science

A founder holding a melatonin bottle while checking a phone late at night

Is It Safe to Take Melatonin Every Night? What ...

Melatonin was built for jet lag, not for a 9pm inbox and a racing mind. Here's what nightly use actually does, and why it may not be solving your problem.

Is It Safe to Take Melatonin Every Night? What ...

Melatonin was built for jet lag, not for a 9pm inbox and a racing mind. Here's what nightly use actually does, and why it may not be solving your problem.

How long a sleep supplement takes to work

How Long Does a Sleep Supplement Take to Work?

Calming effects can come the same night, but deeper sleep is an architecture change that builds over two to four weeks. How to take a sleep supplement and what to...

How Long Does a Sleep Supplement Take to Work?

Calming effects can come the same night, but deeper sleep is an architecture change that builds over two to four weeks. How to take a sleep supplement and what to...

Framework for judging an advanced sleep supplement

What Makes a Sleep Supplement Advanced? A Buyer...

"Advanced" is a property of the formula, not the packaging. Six verifiable markers of a sophisticated sleep supplement, and how to judge any product by them.

What Makes a Sleep Supplement Advanced? A Buyer...

"Advanced" is a property of the formula, not the packaging. Six verifiable markers of a sophisticated sleep supplement, and how to judge any product by them.

Your Late Nights Are Doing to You What Night Sh...

If you regularly sleep past midnight, your body's threat-detection system responds the same way a night-shift nurse's does. Here is the mechanism and what to do about it tonight.

Your Late Nights Are Doing to You What Night Sh...

If you regularly sleep past midnight, your body's threat-detection system responds the same way a night-shift nurse's does. Here is the mechanism and what to do about it tonight.

What HRV reveals about sleep and recovery

HRV and Sleep: What Heart Rate Variability Tell...

Your overnight HRV is a window into how much your sleep actually recovered you. What it measures, why it tracks deep sleep, and how to read it without obsessing.

HRV and Sleep: What Heart Rate Variability Tell...

Your overnight HRV is a window into how much your sleep actually recovered you. What it measures, why it tracks deep sleep, and how to read it without obsessing.

How alcohol affects deep sleep and recovery

How Alcohol Affects Deep Sleep: Why a Nightcap ...

Alcohol helps you fall asleep, then wrecks the sleep that follows. Why a nightcap suppresses REM and deep sleep, and how to drink without destroying recovery.

How Alcohol Affects Deep Sleep: Why a Nightcap ...

Alcohol helps you fall asleep, then wrecks the sleep that follows. Why a nightcap suppresses REM and deep sleep, and how to drink without destroying recovery.