Does sleep tracking really live up to the hype?

My bedroom has become a sleep lab filled with smart rings, fitness bands, and mattress covers. Here's what I learned.

ATLANTA (AP) — Your watch says you had three hours of deep sleep. Should you believe it? Millions of people rely on phone apps and wearable devices like rings, smartwatches and sensors to monitor how ...

The DUSQ tracker senses even the tiniest disruptions and sends you back to sleep, making 8 hours in bed feel like 10 ...