Sleep
Explore our latest articles on sleep to feed the curious you.

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 training or illness
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
Introducing Nap Detection V2: Find your unique rest signature
Nap Detection V2 uses an ML algorithm trained on over a million nights to accurately spot naps, revealing your unique rest signature and true recovery …
Apr 11, 2025
Sleepmaxxing: The evidence behind the TikTok trend
Sleepmaxxing is a big TikTok trend – but are the techniques evidence backed, or social media hype? We find out
Mar 26, 2025
Blue light-blocking glasses explained: The evidence for sleep gains explained
Blue light frequencies have been shown to destroy sleep. We explain the science and how blue light filtering glasses can help
Mar 19, 2025
Sleep smarter with Ramadan Mode on Ultrahuman Ring AIR
Discover how Ramadan Mode on the Ultrahuman Ring AIR helps you manage sleep debt from Suhoor and Taraweeh routines and rest better through the month.
Feb 26, 2025
Introducing Screentime: A PowerPlug designed to help you be more mindful of description: Screentime is a PowerPlug that helps you stay mindful of your digital habits, showing how excessive screen time affects your sleep, focus and mental wellbeing. your digital life
In today’s hyper-connected world, our screens have become both windows and mirrors - portals to endless information and reflections of our daily …
Aug 26, 2024