While Lots Of people battle with drowsiness and finding enough sleep in some unspecified time in the future of their life, some people have sleep disorders that trigger Persistent (extended-term) difficulties with sleep. Temper disorders: A lot of people with depression and anxiety report suffering from too much daytime sleepiness. https://www.refreshsleep.net/adult-and-child-sleep-clinic-our-services/abnormal-dream-behavior