Waking

"After waking up in the middle of the night every day for a week, today you might be diagnosed with insomnia and prescribed sleep medication."

https://www.nationalgeographic.com/science/article/polyphasic-biphasic-segmented-sleep?rid=ECC4EB5A460F31B456C54514153C0893&cmpid=org=ngp::mc=crm-email::src=ngp::cmp=auto-reactivation::add=reactivation_1