These sleep trackers claim to be able to detect breathing irregularities as you sleep – so how did they fare when I challenged them to sniff out my diagnosed disorder?

Whether you're training for a race or just want a gentle nudge to be more active, these are the best fitness wearables for ...

Get tracking, temperature regulation, and other smart features without the hassle or investment of a smart bed.

But the better trackers can identify trends in your sleep, monitor your activity and heart rate, and give advice on improving your rest and fitness. After testing five wearable sleep trackers, we’ve ...

We tested 8 popular devices to find the best sleep trackers that can help you wake up refreshed and energetic instead of groggy and tired. Two emerged as the best.

Millions of people rely on wearable devices to monitor how well they're sleeping. Sleep trackers don’t necessarily measure sleep directly but instead infer states of slumber from signals like ...

Overview Comfort, temperature balance, and uninterrupted sleep are among the main factors that determine sleep ...

Earlier this year, Andrej Karpathy wrote an in-depth analysis of four sleep tracking methods that Federico recently recommended I read. I’m glad he did, Karpathy, an AI researcher who has worked at ...

Fitness wearables can help you move more, sleep better, and stay healthy. Here's how to pick the right one for you, along with the best fitness trackers we've tested. I’m PCMag’s senior writer ...

Discover how the Evie Ring women's health tracker uses temperature monitoring, menstrual cycle tracking, and sleep analysis to provide AI-powered insights without subscription fees.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Using a wearable might seem like a foolproof way to learn about your body. But when it comes to sleep, ...