https://www.healthcentral.com/article/understanding-normal-sleep
Sleep DisordersLifestyle

What is 'Normal' Sleep?

How many hours you should sleep each night, and what sleep cycles look like

Reading in bed at night.
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    Martin Reed

    Martin Reed

    @insomniacoach

    Martin is the creator of Insomnia Coach, an eight-week course that combines online sleep education with individual sleep coaching. His course helps clients improve their sleep so they can enjoy a better life with more energy and start each day feeling happy, healthy, rested, and refreshed. Martin also runs a free sleep training course that has helped over 5,000 insomniacs. He holds a master’s degree in health and wellness education and studied clinical sleep health at the University of Delaware.