How much sleep do you need? A neuroscientist crunches the numbers

How much sleep is enough? You might have heard the old adage about eight hours of shut-eye being the optimal amount, but in reality your needs will vary throughout your lifetime. When it comes to snoozing, your age, health and even your work can each have an impact on how many hours of sleep you should aim for each night.

To help break this down, we’ve analysed research and sought expert advice from Dr Lindsay Browning, a chartered psychologist, neuroscientist, author and sleep expert. Read on for the definitive guide to how much sleep you need, and how to help yourself get those restorative hours in bed.

How much sleep do you need by age?

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