Unlock the secrets to better recovery with The Science of Sleep, five captivating online classes featuring Dr. Mike Gradisar, a world-renowned sleep expert. From the wild sleep patterns of teens to the busy nights of early adults in their 20s and 30s, the joys and jumbles of parenting young kids, the changes of menopause, and must-know advice for all, this series has you covered.
Episode 1
Parents
Imagine learning a gentle technique – no tears involved – that helps your baby sleep better and is backed by science. It might sound unbelievable, but it’s true. Join this class to discover how.
Episode 2
Teenagers
Teens are often labeled as lazy and told to get off their screens, but we’re here to set the record straight—it’s not about the screens. Our studies show that when teens play video games an hour before bed, it only takes them four minutes longer to fall asleep, indicating that screens aren’t the primary issue.
Episode 3
Young Adults
Most people are familiar with jet lag and have felt its effects, as it takes time for sleep to adjust. Surprisingly, you can experience something similar, called social jet lag, right at home. In this class, you’ll learn the essentials and discover practical steps to improve it.
Episode 4
Adults
Why does your mind start racing the moment you turn off the lights? Overthinking at night can make sleep feel impossible, but The Science of Sleep is here to help. Dr. Mike Gradisar, head of sleep science at Sleep Cycle, breaks down why negative thoughts hit hardest before bed – and, more importantly, how to take control. Learn three science-backed cognitive techniques to calm your mind, quiet worries, and finally get the rest you deserve.
Episode 5
Menopause
Menopause can wreak havoc on your sleep, with hot flashes and night sweats disrupting your nights. But there’s good news – there are proven ways to stay cool and sleep better. Dr. Mike Gradisar dives into the science of thermoregulation and shares expert-backed strategies to lower your body temperature, reduce awakenings, and finally wake up feeling refreshed.
The Sleep Around the World Report
Discover the latest global sleep trends, lifestyle factors, and the impact of major events on sleep and mood. This exclusive report uncovers insights from millions of sleep sessions worldwide, providing a unique perspective on how culture, daily habits, and global events shape sleep patterns.

Download Sleep Cycle
Backed by science and loved by millions, Sleep Cycle tracks your sleep with unmatched accuracy using your phone’s microphone. We’re proud that over a million people trust our app nightly—more than any other in its category.

Say hi to Dr. Mike Gradisar
In 2021, Sleep Cycle’s CEO approached Dr. Gradisar with an intriguing proposal: to become the company’s first dedicated sleep science expert. It was an experiment, one that placed an Australian researcher at the heart of a Swedish company. Three years later, it’s safe to say the experiment worked.