Sleep
Explore our latest articles on sleep to feed the curious you.
Ultrahuman study of 105,196 nights sleep reveals glucose and sleep link
An Ultrahuman study has revealed the huge benefits of simply going to sleep at the same time every night
Nov 02, 2026
What short sleep does to your blood sugar
We’ve all had days when we’ve woken up after a night of inadequate sleep. There are numerous physiological processes that happen when we’re asleep.
Nov 02, 2026
Why sleep consistency is the power-up for your health you're missing
New data from an Ultrahuman study of 105,196 nights sleep shows how inconsistent sleep affects both glucose and heart rate
Nov 02, 2026
Orthosomnia explained: Can wearables really make sleep worse?
Orthosomnia refers to when sleep data damages sleep through anxiety – and it's a real phenomenon. We explain when orthosomnia is real and how to avoid …
Oct 28, 2026
If you wake up at 3 AM regularly, use our matrix to find out why
If you find yourself waking at 3AM regularly, it could be your metabolism. Use our guide and matrix to help find out why
Oct 14, 2026
Revealed: How long Ultrahuman Ring users took to recover from lost sleep
It took Ultrahuman Ring users longer than you might think to recover from lost sleep – here's what the data says
Oct 07, 2026
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.
Oct 05, 2026
Blue light explained: How it affects your sleep and body clock
We explain the science behind blue light wavelengths and how it affects sleep onset, as well as how to mitigate its effects
Oct 05, 2026
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
Sep 30, 2026