Optimize your sleep cycles with our science-based calculator. Discover your ideal bedtime or wake-up time for better sleep quality.
Quality sleep improves cognitive function, memory, and problem-solving abilities.
Proper rest boosts immune function, regulates hormones, and supports heart health.
Adequate sleep helps regulate mood and reduces stress and anxiety levels.
Sleep occurs in cycles of approximately 90 minutes each, moving through different stages from light sleep to deep sleep and REM (Rapid Eye Movement) sleep. Waking up at the end of a complete sleep cycle, during light sleep, makes it easier to wake up feeling refreshed and alert.
Our calculator helps you time your sleep to complete full cycles, taking into account the average time it takes to fall asleep. Most adults need 5-6 complete sleep cycles per night for optimal rest.
SleepWell was created with a simple mission: to help people improve their sleep quality through science-based tools and education. We believe that quality sleep is a foundation for health, productivity, and happiness.
Founded in 2023 by a team of sleep enthusiasts and health professionals, SleepWell emerged from a shared frustration with waking up groggy despite spending enough time in bed. After researching sleep science, we discovered the importance of sleep cycles and timing.
We developed our sleep calculator to make this knowledge accessible to everyone, helping people wake up at the optimal point in their sleep cycles for maximum refreshment.
Our calculator is based on established sleep science principles:
By calculating backwards from your desired wake-up time (or forward from your bedtime) and accounting for the time it takes to fall asleep, we provide optimal times that align with the end of sleep cycles.
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Last Updated: October 15, 2023
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