5 ways to supercharge your deep sleep
Learn why deep sleep matters, how much you need, and 5 science-backed ways to improve it — even…
Jun 17, 2025
Sleep
Articles, guides, and know-how to understand sleep science.
Introducing Caffeine Window upgrade: Now with real-time tracking and logging
Caffeine Window got personal with effortless tagging, real-time body caffeine levels and adaptable cut-off times.
Jun 13, 2025
Sleep Algorithm 2.0 explained: Personalized sleep scoring
How Ultrahuman Ring AIR's new machine learning-trained sleep algorithm makes tracking more accurate and personalized
Jun 11, 2025
Shift Work PowerPlug: How to manage irregular sleep patterns
Introducing the Ultrahuman Ring AIR's Shift Work PowerPlug and how it helps shift workers maximize rest and recovery.
May 30, 2025
Why naps are the secret to living stronger, smarter, and longer
Why sleeping for 28 minutes can make you smarter, stronger – and live longer
May 22, 2025
Your circadian rhythm and sleep-wake cycle explained
We explain why your circadian rhythm and sleep wake cycle is so important, and what affects your chronotype.
May 16, 2025
Women and sleep: Hormone impact and unique circadian rhythms explained
How hormones during the menstrual cycle, perimenopause, natural chronotypes and the mental load affect women's sleep patterns
May 15, 2025
Skin temperature: What’s normal and how it fluctuates
We explore skin temperature, what's normal, and how it naturally fluctuates during sleep, the menstrual cycle and with…
Apr 30, 2025
Mouth taping for sleep: Benefits and risks explained
The scientific evidence behind mouth taping, nasal breathing – and whether it really promotes a stronger jawline
Apr 17, 2025