Comparison

Eight Sleep vs Sunlighten

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Eight Sleep

This advanced sleep system intelligently adjusts temperature and elevation for personalized comfort. It tracks detailed sleep metrics and provides insights to help you wake up refreshed. The system supports up to two users with individual profiles and learns over time.

Highlights
  • Personalized temperature control
  • Automatic sleep stage tracking
  • Heart rate and HRV monitoring
  • Smart alarm with vibration
  • Dual user sleep profiles
  • AI-driven sleep insights
Read full description

Introducing Pod 6. The setup is as effortless as your sleep. Guided Hub setup gets you paired in minutes, a live priming screen decodes your Pod's lights in real time so you're never guessing, and Solo Pod owners get a path built just for them. Your best sleep starts tonight. The Eight Sleep Pod is the intelligent sleep system that gives you up to one hour more of sleep every night. It cools. It heats. It elevates. PERSONALIZED SLEEP WITH AUTOPILOT Autopilot is the intelligence behind the Pod. It adjusts your temperature and elevation to perfect your sleep experience. LEARN ABOUT YOUR SLEEP AND HEALTH View your sleep stages, time slept, heart rate, HRV, and snoring. Plus, receive personalized insights and recommendations. WAKE UP REFRESHED With customizable chest-level vibration and a gradual thermal change, you will wake up gently and feel fully refreshed. TWO SLEEP PROFILES PER POD Autopilot creates a profile for up to two individuals on the same Pod and refines overtime. Have questions? We’re here to help. Email us at support@eightsleep.com. Terms of Use: - www.eightsleep.com/app-terms-conditions/ - www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Sunlighten

Optimize your well-being with this app, designed to enhance your light therapy and sauna experiences. Create personalized wellness programs, track sessions in real-time, and control your devices remotely for a seamless health journey.

Highlights
  • Science-based wellness programs
  • Personalized program creation
  • Real-time session tracking
  • Remote sauna control (Wi-Fi)
  • Audio and lighting management
  • Red light therapy panel programs
Features
Read full description

Take your wellness journey to the next level with the Sunlighten app, designed to enhance your Sunlighten sauna and Sunlighten RED Light Therapy Panel experience and optimize your well-being. Stay in control, feel your best, and enjoy the full potential of Sunlighten products. Key Features: • Science-based wellness programs designed to help you reach your health goals. • Create your own personalized programs. • Real-time session tracking. • Schedule your sauna sessions to build a routine. • Remote sauna control for compatible connected saunas • Manage your sauna's audio and lighting settings. • Get the most of our your RED Light Therapy Panel with over 20 scientifically optimized programs and guidance from the leaders in light therapy. Owners of mPulse saunas and RED Light Therapy Panels can enjoy full access to all app features, while owners of Amplify, Signature, and Solo Rise models can take advantage of convenient audio control. Stay connected for exciting updates as we continue to enhance your Sunlighten experience!

Screenshots

Eight Sleep4 screens
Sunlighten4 screens

Verdict

The call

The clearest difference is rating: Eight Sleep at 4.8 against Sunlighten's 2.7. Eight Sleep also leads on update cadence (every 4 days vs every 4 months) and ratings volume (18K vs 88). Sunlighten's advantage is in-app purchases (none vs 2) and iOS requirement (15.1 vs 18.0). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Eight Sleep sells 2 in-app purchases, starting at $18.99 per month. Sunlighten asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Eight Sleep holds the better App Store score, 4.8 against 2.7. That said, the two scores are not equally well evidenced: Eight Sleep has 18K ratings behind it against 88, so its average is the more settled of the two. Written reviews point the same way: 29% of Eight Sleep's written reviews are positive against 20% of Sunlighten's.

UpkeepUpdate frequency

Eight Sleep ships an update every 4 days, Sunlighten every 4 months. The most recent releases landed on November 4, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
Eight Sleep versus Sunlighten: the parameters behind the verdict, then further details
ParameterEight SleepSunlighten
PriceFreeFree
Rating4.8 (18K ratings) — better2.7 (88 ratings)
Positive reviews28.7% of reviews — better19.8% of reviews
Number of ratings18K — better88
Update frequencyEvery 4 days — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.1 — better
Further details — not scored
Size259 MB53 MB
Age rating12+17+
DeveloperEight Sleep, IncSunlighten Inc

Customer experience

Eight Sleep

All ratings17,805 ratings
Positive94.4%
Neutral1.3%
Negative4.2%
Written reviews832 reviews
Positive28.7%
Neutral11.1%
Negative60.2%

Sunlighten

All ratings77 ratings
Positive33.8%
Neutral16.9%
Negative49.4%
Written reviews131 reviews
Positive19.8%
Neutral8.4%
Negative71.8%

User reviews

Eight Sleep

From 18K App Store ratings

What we love

  • 🚀 Amazing sleep quality
  • 🌡️ Effective temperature control
  • 📊 Detailed sleep tracking
  • 🤖 Helpful AI features
  • 🏆 Great customer service

Room to improve

  • 🐛 Buggy app with frequent crashes
  • 🔌 Requires constant internet connection
  • 🕰️ Alarm and temperature controls not intuitive
  • 🔄 Inconsistent sleep data and metrics
  • 💰 Expensive with mandatory subscription

Sunlighten

From 88 App Store ratings

What we love

  • 🚀 Convenient remote control
  • 👍 Customizable programs
  • 🚀 Easy to use app
  • 👍 Enhances sauna experience

Room to improve

  • 🐛 Unreliable app connectivity
  • 🔒 Privacy concerns with data collection
  • 🐛 Inconsistent scheduling and remote start
  • 🐛 Buggy and glitchy app
  • 👎 Limited remote functionality

Bugs and requests

Eight Sleep

Reported bugs

5 issues
  • App freezes and loses connection to pod
  • Alarms not working or turning off properly
  • Temperature settings not saving or resetting
  • Sleep data not syncing or displaying accurately
  • Frequent app crashes and performance issues

Requested features

5 requests
  • Apple Watch app integration
  • Offline temperature/alarm controls
  • Customizable sleep tracking and insights
  • Improved alarm snooze/dismiss functionality
  • Nap mode and more sleep schedule flexibility

Sunlighten

Reported bugs

4 issues
  • App fails to connect to sauna
  • Scheduled programs not running as expected
  • Inconsistent lighting controls
  • Tablet frequently restarts or loses connection

Requested features

4 requests
  • Remote start and preheat capability
  • Improved app stability and reliability
  • Better integration between app and sauna
  • More customization options

In-app purchases

2 purchases

Eight Sleep

Subscriptions2
  • 8+ Pro (Monthly)$18.991 Month
  • 8+ Pro (Annual)$179.991 Year
None

Sunlighten

No in-app purchases

Questions

Is Eight Sleep free?
Eight Sleep is free to download, with in-app purchases available.
Is Sunlighten free?
Sunlighten is free to download, with no in-app purchases.
Which has better reviews, Eight Sleep or Sunlighten?
Eight Sleep is rated higher. Eight Sleep averages 4.8 out of 5 from 18K ratings, while Sunlighten averages 2.7 from 88 ratings.
Do Eight Sleep or Sunlighten have ads?
Neither Eight Sleep nor Sunlighten shows ads.
Which is updated more often, Eight Sleep or Sunlighten?
Eight Sleep ships an update every 4 days, and Sunlighten every 4 months. Most recently, Eight Sleep was updated on November 4, 2026 and Sunlighten on November 3, 2026.

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