Knowledge Base

Sleep Guides & Articles

From the neurobiology of dreaming to the perfect power nap—explore our research-backed guides to master your circadian rhythm.

New Release

Why Do I Wake Up at 3 AM? The "3 AM Wall" Explained

Waking up at 3 AM isn't a coincidence. Learn how sleep cycles and cortisol spikes trigger early wake-ups.

REM Science

Discover the link between REM sleep and vivid dreaming. Learn the timing hacks to wake up mid-dream.

Understand the architecture of sleep and how waking up between cycles boosts morning alertness.

How long should you really nap? Learn why 20 minutes is the "goldilocks" zone for productivity.

Can you really catch up on sleep? Discover the truth about sleep recovery and chronic fatigue.

Why REM is essential for memory, emotional processing, and cognitive health.

Align your alarm with your biology to stop feeling groggy every morning.

Customizing your sleep schedule based on age and lifestyle factors.

Recovering from fatigue without relying on caffeine or sleeping in.

Put our research into practice. Use our free calculators to find your perfect sleep window.