"Sleep is your superpower ..."

https://www.ted.com/talks/matt_walker_sleep_is_your_superpower?language=en 

Matthew Walker: Why Is It Essential To Make Time For Sleep?

https://news.berkeley.edu/2019/05/13/walker-tedtalk/

https://news.berkeley.edu/2018/08/14/sleep-viral-loneliness/

https://news.berkeley.edu/2017/10/17/whywesleep/

https://www.gatesnotes.com/Books/Why-We-Sleep

https://en.wikipedia.org/wiki/Matthew_Walker_(scientist)

https://cnalifestyle.channelnewsasia.com/wellness/the-pandemic-messed-with-your-sleep-here-s-how-to-feel-rested-again-249736

https://www.channelnewsasia.com/commentary/sleep-loss-overworked-healthcare-paramedic-empathy-2277546

https://cnalifestyle.channelnewsasia.com/wellness/you-can-break-the-cycle-of-insomnia-without-long-term-medication-187146

https://cnalifestyle.channelnewsasia.com/wellness/coffee-tiredness-sleep-279031

https://cnalifestyle.channelnewsasia.com/wellness/singapore-most-fatigued-country-world-we-are-tired-278311

https://www.cdc.gov/niosh/work-hour-training-for-nurses/longhours/mod2/11.html

https://www.livescience.com/5269-study-sleepy.html

https://www.sciencealert.com/humans-used-to-sleep-in-two-shifts-maybe-we-should-again

Cousins, J.N., Leong, R.L.F., Jamaluddin, S.A. et al. Splitting sleep between the night and a daytime nap reduces homeostatic sleep pressure and enhances long-term memory. Sci Rep 11, 5275 (2021). https://doi.org/10.1038/s41598-021-84625-8 https://www.nature.com/articles/s41598-021-84625-8

Fang, Z., & Rao, H. (2017). Imaging homeostatic sleep pressure and circadian rhythm in the human brain. Journal of thoracic disease, 9(5), E495–E498. https://doi.org/10.21037/jtd.2017.03.168

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5465131/

https://www.sleepfoundation.org/circadian-rhythm/sleep-drive-and-your-body-clock