Engineered for Space-Grade Rest
Sleep Like
an Astronaut
Science-backed power naps engineered for peak performance. Wake up sharp, focused, and ready — with zero sleep inertia.
Available on Android · iOS coming soon
Science-backed
Engineered for Peak Performance
Every feature is designed around sleep science to give you maximum mental recovery in minimum time.
Zero Sleep Inertia
Our smart algorithms end your nap at the optimal sleep stage, so you wake up sharp — not groggy.
Optimized Focus Cycles
Calibrated nap durations restore cognitive function and boost creativity without disrupting your night sleep.
Smart Wake Technology
Gentle, phase-aware wake signals that respect your sleep cycle. Rise naturally, at the perfect moment.
Ambient Soundscapes
Curated audio environments — from white noise to nature sounds — designed to accelerate sleep onset.
Session Analytics
Track your nap patterns and discover your optimal rest window for peak daily performance.
No Subscriptions
One purchase, full access, forever. No recurring charges, no paywalls, no feature gating.
How it Works
Three Steps to Better Rest
No setup, no learning curve. Just pick your time and let NapTune handle the rest.
Set Your Timer
Choose your ideal nap duration — from a quick 10-minute power nap to a restorative 30-minute deep session. Our smart presets are calibrated to your sleep cycles.
Drift Off Naturally
Close your eyes while ambient soundscapes guide you into sleep. NapTune monitors your nap phase and prepares the perfect wake window.
Wake Up Sharp
A gentle, phase-aware alarm ends your nap at the optimal moment — before deep sleep sets in. You wake up alert, focused, and ready to perform.
Sound Design
Compose Your Sleep Environment
Mix and layer scientifically crafted soundscapes to build your perfect pre-sleep environment. Each channel is engineered to mask distractions and accelerate sleep onset.
- 🎵 5 nature & space soundscapes: Space, Forest, Fire, Rain, Ocean
- 🌙 Adaptive fade-in & fade-out profiles
- 🔔 Alarm that blends seamlessly into your sound mix
Daily Intelligence
Science-Backed Tips & Warnings
NapTune delivers a fresh insight every day — personalized nudges to optimize your rest and protect your night sleep.
The 20-Minute Rule
Keeping naps under 20 minutes prevents entering deep sleep stages, so you wake up sharp instead of groggy.
The Caffeine Nap
Drink a coffee right before napping. Caffeine takes 20 minutes to kick in — timed perfectly with your wake-up.
Dim the Lights
Even 5 minutes in darkness boosts melatonin and dramatically speeds up the time it takes to fall asleep.
Ride the Post-Lunch Dip
Your body has a natural alertness dip between 1–3 PM. This is your optimal nap window — use it.
Avoid the 4 PM Nap
Napping after 4 PM reduces sleep pressure and can delay your bedtime by hours, disrupting your night rest.
Adenosine Clearance
Even a short nap clears adenosine (the fatigue molecule) from the prefrontal cortex, restoring focus fast.
New tip delivered in-app every day. Personalized to your nap history.
FAQ
Frequently Asked Questions
Everything you need to know about napping smarter with NapTune.
How long should a power nap be?
The ideal power nap is 10–20 minutes. This keeps you in light Stage 1 and Stage 2 sleep, so you wake up refreshed without sleep inertia (grogginess). NapTune times your nap precisely and wakes you before deep sleep sets in.
Is NapTune free?
NapTune is a one-time purchase with lifetime access — no subscriptions, no ads, no hidden fees. Pay once and keep every feature forever, including future updates.
Is NapTune available for iOS?
NapTune is currently available for Android on Google Play. An iOS version is in development — join the waitlist on our site to be notified at launch.
What is sleep inertia and how does NapTune prevent it?
Sleep inertia is the groggy, disoriented feeling after waking from deep sleep. NapTune's Smart Wake Technology monitors your nap duration and wakes you during light sleep, so you return to your day sharp instead of sluggish.
When is the best time of day to nap?
For most people, the natural afternoon dip occurs 7–8 hours after waking — typically between 1:00 PM and 3:00 PM. NapTune calculates your personal peak nap window based on your sleep patterns.
Blog
From the Blog
Tips, science, and stories about the art of the perfect power nap.
How to Fall Asleep for a Nap in Under 10 Minutes
Can't fall asleep fast enough for a midday nap? These proven techniques — breathing drills, soundscapes, and environment hacks — make 20-minute naps actually possible.
The Best Time to Nap: Find Your Perfect Afternoon Window
The best time to nap is usually between 1 and 3 PM — but your personal sweet spot depends on when you woke up. Here's how to find your window.
10 Science-Backed Benefits of Power Naps Coffee Can't Match
Sharper memory, better mood, faster reactions — here are ten research-backed benefits of power napping, and how a 20-minute nap delivers each one.
Your Best Nap
Starts Tonight
One purchase. Full access. No recurring charges, ever.