Tag: sleep

All the articles with the tag "sleep".

Sleep Wellness

Sleep Debt: What It Is and How to Pay It Back

Sleep debt is the deficit that builds up across short nights, and it costs more than a groggy morning. Here is what it is, how to tell if you are carrying it, and how to recover.


Zenith 101 Sleep

How Zenith Measures Sleep Debt

Sleep debt is the deficit that builds up across short nights, and most wearables miss it by grading one night at a time. Here is how Zenith tracks the debt you are carrying and what it does with it.


Zenith 101

Restorative Sleep (REM + Deep), Explained

Restorative sleep is the REM and deep sleep that rebuilds you. Here is what each stage does, how Garmin estimates them, and why eight hours isn't always eight good hours.


Zenith 101 Sleep

How Zenith Measures Sleep

Sleep is more than hours in bed. Here's how Zenith calculates what you actually need, tracks what you got, and shows you the debt you're carrying.