Segmented Sleep. I've slept like this for years and didn't know it was "natural".
It’s not insomnia if you stay up voluntarily.
"Sleep We Have Lost" - Historical references to humans typically having two shorter periods of sleep instead of one period of sleep. Fascinating!
Can segmented sleep be the answer for those of us feeling sleep deprived?
Dual Core sleep
The Calming Revelation Of Segmented Sleep
Letter of Recommendation: Segmented Sleep - The New York Times
Letter of Recommendation: Segmented Sleep
I used to be tired all the time too. 'Segmented sleep' solved that | Peter Papathanasiou | Opinion | The Guardian