Sleep & Wellbeing
Living in sync with your circadian rhythms can improve
energy sleep immune system digestive health mood
One-size-fits-all? No thanks. Arcashift gives you a plan that actually makes sense for your life.
Ready to Arcashift?
Your rhythms, your plan—because guessing hasn’t been working, has it?
Healthcare is personal, and so is Arcashift. Get tailored recommendations to realign your rhythms and fit your day.
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Eating Window
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Be active in bright light
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Sleep and avoid all light
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End caffeine
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Chill in dim light
New goals? No problem.
Change your mind, and we change your plan.
Arcashift updates your schedule the second you change your goals—no complaints, no side-eye.
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Pick your wake-up goal
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Update your sleep goal
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Select your chronotype
View Your Insights
Are you crushing your goals? Let’s check the receipts.
See if your schedule and your goals are actually on speaking terms—Insights will tell you the truth.
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Alignment
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Sleep
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Activity
We could tell you it works, but the reviews do it better.
We have proof.
See how Arcashift is actually helping people.
“Arcashift made a difference in my sleep quality within 1 week by making me very aware of the effects of bright light (and any light) on my sleep cycle.”
– Ryan, Scientific Editor
“Arcashift is really helping a lot… being careful to follow the light exposure is really making a difference.”
– Joe, Software Developer
“I really rely on Arcashift when I am on night shift for my sleep schedule”
– Lauren, Pediatric Nurse
Download the app for iOS and Android
Tired of fighting your body’s clock? Arcashift helps you finally get on the same page.
Arcashift FAQs
Arcashift is a science-backed app that helps you sleep better, feel more energized, and align your schedule with your body’s internal clock—aka your circadian rhythm. Whether you're a shift worker, a night owl, or just someone tired of feeling tired, Arcashift helps you get in sync.
Arcashift uses your recent sleep and activity patterns to estimate your circadian rhythm. It then provides personalized recommendations—including ideal sleep times, caffeine cutoffs, eating windows, and light exposure—to help you feel and function better throughout the day.
Arcashift is built for anyone struggling with inconsistent sleep—but especially:
- Shift workers (nurses, first responders, IT specialists, etc.)
- People with irregular schedules or jet lag
- Health-conscious users trying to optimize energy and wellness
- Anyone curious about circadian rhythms and better sleep
Some of our most-loved features:
- Nap Planner: Tells you the best time to nap for energy without grogginess.
- Caffeine Calculator: See how that coffee at 3pm might mess with your 10pm bedtime.
- Eating Window Guide: Helps you time your meals to support better sleep and digestion.
- Light Exposure Tips: Shows when to seek or avoid light to shift your rhythm.
Nope. Arcashift can sync with Apple Health and other wearables to pull in your sleep and activity data automatically. You can also log things manually if you prefer.
Most sleep apps track what you do. Arcashift helps you understand when to do it. We’re built on circadian science, not just sleep duration. That means smarter timing for everything from naps to meals to caffeine.
Yes! You can get started with our core features for free. For access to premium tools like the caffeine calculator and calendar sync, we offer a paid subscription.
Our algorithms are built by scientists who specialize in circadian rhythms, including our CEO Olivia Walch, PhD. We combine validated circadian models with your real-world data to give personalized, research-based guidance.