
Why Even Small Lights Can Disrupt Your Sleep
Light and sleep share one rule: your retinas report every glow to the brain all night. Seven LED dots can keep your brain half-dressed for a party nobody invited.
The blog

Light and sleep share one rule: your retinas report every glow to the brain all night. Seven LED dots can keep your brain half-dressed for a party nobody invited.

The best white noise machines for light sleepers: why your brain cares about change not volume, the thin evidence, and the ten-dollar alternative.

Nighttime heartburn and sleep: why acid wakes you at 3am without the burn, the three-hour dinner rule, and the position and timing changes that help tonight.

The best light therapy lamps for steady wake times, honestly assessed: what specs matter, when a lamp beats gray mornings, and the limit no bulb solves.

Waking at 3am every night feels personal, but it's shallow sleep and a rising cortisol wave meeting a learned habit. Here's what's actually happening and the fix.

Blue light evidence, examined honestly: the 2015 tablet study, why night mode helps less than promised, and why the content on the screen matters more.

New moms sleep in fragments, and nap-when-the-baby-naps needs logistics to work. Tag-team nights, naps that count as repair, and when the fog needs a doctor.

Napping after a bad night is a trade between today's relief and tonight's sleep. When the nap helps, when it steals the night, and what to do instead at 3 p.m.

Morning light resets your body clock: how daylight reaches the master clock, why ten minutes beats the supplement shelf, and how to time the reset right.

Why acid reflux wakes you up at night: the horizontal stomach, the 9:45 pasta, the after-dinner walk that helps, and when the burn is a doctor question.