# Sleep Details — user reviews > 52 indexed App Store user reviews of Sleep Details by Sydvesti Oy, rated 4.40/5 from 1,048 ratings. - Source: https://appshunter.io/ios/app/sleep-details/id1534838758/reviews - App overview in markdown: https://appshunter.io/ios/app/sleep-details/id1534838758.md - Rating breakdown: 5★ 741 · 4★ 137 · 3★ 78 · 2★ 25 · 1★ 67 ## What do users think of Sleep Details? Overall sentiment: neutral **Pros** - 👍 Great interface - 👍 Helpful for understanding sleep - 👍 Good for blind users **Cons** - 🐛 App not working/tracking properly - 🐛 Sleep time/data inaccurate - 🔒 Subscription/payment issues - 🔋 Drains battery **Commonly reported bugs** - Sleep stage section disappeared - App keeps kicking user out - Widget doesn't update with current data **Most requested features** - Add ability to log naps - Improve widget updates - Provide more explanation of sleep metrics - Implement REM sleep tracking ## Newest reviews (16 of 52) ### 2/5 — Too basic *2026-08-12* The data being tracked is very limited and no description of why your overall score is rated as it is. You can’t export the data so I’m not sure what I’m supposed to do with data captured in a single app that I can’t analyze. Also, it greatly varies to sleep scores as reported by Apple and when I get a low rating, I actually don’t feel terrible so I don’t trust it’s algorithm. ### 3/5 — Recent update or what? *2025-10-01* Honestly I loved using this app for months now. It kept me on top of my sleep and I loved the fact it would score it. Recently, idk if it was an update or what but I can’t even add my supplemental sleep anymore. Because I take naps here and there or sleep past alarm lol. But it won’t even allow me to add them anymore. So I’ll be just going back to apple health because at least there I can add it. **Developer response:** Thank you for your feedback. You can enable the Add Nap button in the settings section of Sleep Details. If you have any additional questions you can contact us at contact@sydvesti.com ### 4/5 — Have you changed the app? *2024-12-12* It seems that my sleep scores have suddenly improved and I know I’m not sleeping any better than I used to. I have a chronic health issue that causes sleep disturbances. Have you changed something in the app? **Developer response:** Thank you for using Sleep Details. We haven't changed the score calculations. It could be that one of your metrics such as Hear Rate during sleep has improved compared to the comparison baseline (7 day RHR). This would improve your score even if your sleep duration etc hasn't improved. You can open the History section to see if one of your key metrics has improved compared to your long-term averages. Please contact us at contact@sydvesti.com if you have any additional questions ### 2/5 — App problems *2024-09-07* I’ve had this app for a few months now and I’ve already paid for my subscription and then wants me to pay another month now. when I’ve already paid for it through my Apple billing this is causing major inconveniences **Developer response:** So sorry to hear about the billing issues. Could you contact us at contact@sydvesti.com so we could figure out what is causing the issue. Could you also check if the subscription is listed correctly here: Open Settings on your iPhone > Tap your name / account > Select Subscriptions. So sorry for the inconvenience. ### 3/5 — Good but Widget doesn’t update *2024-06-03, version 3.5.2* Good app but the Home Screen widgets don’t update with the current sleep score, it still shows the score from days ago. ### 2/5 — No way to log naps. *2024-02-07, version 3.2* There’s no way to log naps in this app, so it doesn’t work for me. Naps provide about 25% of my total sleep. ### 3/5 — Ease of use *2024-01-15* I use to use a Fitbit. I think they user interface is much better than Apple. This thing feel clunky. I hate the idea that I have to tell my watch I am going to sleep and it doesn’t do it automatically. That’s it for now **Developer response:** You don't have to tell your watch that you are going to sleep each night. This can be adjusted in the settings and your Apple Watch should then automatically pick up when you have actually gone to bed. We can help you out with setting up automatic sleep tracking on your Apple Watch. You can contact us at contact@sydvesti.com ### 4/5 — 👍🏼👍🏼 *2023-10-05, version 3.0* Love it! It would be nice if they added wrist temperature into the equation! ### 2/5 — Horrible app *2023-09-21* I purchased a yearly subscription and the app hasn’t worked for months. I wasted money on this app. It won’t even collect data and when I go to the app on my watch it says that there’s something wrong with the app. Do not use this app. **Developer response:** So sorry to hear that the app isn't working as it should on your device. There's probably something missing in the settings. Could you contact us at contact@sydvesti.com so we could figure out what is causing the issue on your device. ### 3/5 — Try Spell Checker *2023-03-11, version 2.0.5* I would have sent a private message but seems no way to do that, any “Sleep Debt” is not spelled “Sleep Dept.” ### 5/5 — The good and bad *2023-01-28* Ap does a good job monitoring health readings (I assume) but it doesn’t know when I’m asleep or just still. It records sleep when I’m still and also records sleep if it’s taken off to charge. Program should be written that if there is no heartbeat or breathing that you aren’t sleeping. **Developer response:** Thank you for your feedback. Could you contact us at contact@sydvesti.com so we could try to figure out what is causing the described issue on your device. ### 5/5 — A good one!! *2022-11-18, version 2.0* Now I understand how the app works and I really like it. Thanks!! I'd like to share the subscription with my Family Sharing. My mom has an Apple Watch too and this app would help her a lot! 🙏 ### 4/5 — Suggestion *2022-11-08* Biggest complaint is that you can only add tags and ratings the day of! It would be extremely helpful to go back and add tags after the fact, especially for data taken before you started using the app. (Also REM detection would be great, and an explanation of what makes different measures red/ yellow/ blue.) **Developer response:** You can now add tags and ratings for all available days (please update Sleep Details to the latest version). REM detection is also if you update your Apple Watch to watchOS 9. Please note that sleep stage data will be available only for nights after the point you have updated to watchOS 9. Let us know if you have any additional questions or comments. You can contact us at contact@sydvesti.com ### 4/5 — Great *2022-10-26* This app is amazing, my only question is that is says free trial until…. A date. Does that mean after this date i have to pay even if i dont want a subscription or any extra things? Thanks **Developer response:** Thank you for your feedback. After the free trial ends the app will just stop working unless you decide to purchase lifetime access or one of the subscriptions. If you have any additional questions you can contact us at contact@sydvesti.com ### 5/5 — Great feedback *2022-10-23* It’s helpful to see how my body behaves while I’m sleeping. I switched beds after seeing a big positive change in my sleep stats when I slept in a different bed. **Developer response:** Thank you so much for your review! ### 5/5 — Best Sleep app *2022-09-24, version 1.8.5* Love this app. It's got a great watch app and the iOS design is fantastic and easy to read. **Developer response:** Thank you so much for your review! ## Most critical reviews (10 lowest-rated) ### 1/5 — Bye *2026-03-23, version 5.1* Claims a free trial, the sole way to test features. But Apple’s popup lacks “free” language ALWAYS appearing in every other circumstance a free trial is actually on the table. If you’re not paying attention, you’ll get snickered. Deleted, with dev added to my NEVER! List. ### 1/5 — App keeps kicking me out *2024-07-24* I'm having a frustrating experience with this app. Whenever I give it access to my health app, it kicks me out every single time I open it. I was really looking forward to using it to track my sleep and get detailed information, but I haven't been able to use it for that purpose. It's really frustrating and disappointing. **Developer response:** So sorry to hear that the app isn't working as it should on your device. Could you contact us at contact@sydvesti.com so we could figure out what is causing the issue on your device. ### 1/5 — Sleep time is off *2023-04-07, version 2.2* My sleep time is off it has me waking up at 2:00 am or anytime except when I wake up. If I get a sleep report. I’ve rebooted but still didn’t help. ### 1/5 — Does not track *2023-03-25, version 2.2* No matter how many permissions are on in your health app, this app will not track your sleep. Waste of money…do not purchase ### 1/5 — Something wrong *2022-08-13, version 1.8.5* 1st night great, after that way off. Today says slept 9 hrs when didn't even go to bed yet, is only 8pm, I got up at 6am. Nowhere to get help. Yesterday said got up at 4am, actually woke up at 6:05. Need help! ### 1/5 — I was not a fan *2022-07-02, version 1.8* It did not pick up my sleeping and it was irritating ### 1/5 — What trial? *2022-05-11* If your going to offer a trial to try the app then make it a full trial. There were several areas in the app that I want to experience and see, however I needed to purchase the app to do so. No thank you! Deleting only after 10 minutes of looking at the app. ### 1/5 — Pay only??? *2022-05-06, version 1.7* So there’s no free option after the trial? That’s ridiculous. If you charge money, put the price tag upfront and don’t waste people’s time. ### 1/5 — Kein Support *2022-03-14* Die App funktionierte nicht richtig, leider hat der Support nie geantwortet. Zum Glück hatte ich nur premium für einen Monat gekauft. ### 1/5 — Same as free health app *2021-12-15* This app didn’t show anything else that I couldn’t already see from the generic health app that come with the phone. It only uses data collected by your health app. It only tracked the nights where I set my alarm so when I want to see how I slept on the days I want to sleep in It doesn’t give and info. This would throw off the history which is only on the paid version. I will keep looking for a better app. I don’t mind paying for something that works but this one isn’t it. **Developer response:** Thank your for your feedback. Besides having the Apple Watch app, Sleep Details has plenty of other features that the Health app doesn't such as trends for heart rate variability and activity during sleep. Also there is no need to turn on the alarm. You can just set a sleep schedule on your Apple Watch and your Apple Watch will automatically track your sleep every night. We will happily help you out with setting up automatic sleep tracking on your Apple Watch. You can contact us at contact@sydvesti.com ## Most praised reviews (10 highest-rated) ### 5/5 — This app is the best! *2025-07-18, version 4.4.1* This app really helps me understand how sleep affects my health! ### 5/5 — Muy interesante *2024-12-16, version 4.1* Muy positiva ### 5/5 — Sleep Stage Section Disappeared *2024-11-07, version 4.1* Update 11/7/24: issue only occurred on one night and has resolved itself since. The section with Awake - REM - Core - Deep has disappeared. It’s there for all of my past day graphs but not for today. This was one of the main reasons I purchased it. What happened? Why is it gone? ### 5/5 — Sleep Stage Section Disappeared *2024-10-26* The section with Awake - REM - Core - Deep has disappeared. It’s there for all of my past day graphs but not for today. This was one of the main reasons I purchased it. What happened? Why is it gone? **Developer response:** Sorry to hear that sleep stage section was missing for that day. Probably for some reason your Apple Watch just hadn't recorded sleep stage data for that specific day. Could you contact us at contact@sydvesti.com so we could try to figure out what caused the issue. ### 5/5 — Grandma *2024-05-22, version 3.5.2* Love my sleep details !💕💕 ### 5/5 — Sleep Details App Troubleshooting *2024-04-16* My new Apple Watch stopped recording my sleep score. I emailed my concerns, figuring it was human/user error, which it was. My issue was addressed in a very timely manner and in an easy to follow instructions. Thank you Olli Sydvesti. I appreciate your help. **Developer response:** Thank you so much for your feedback ### 5/5 — Thank you *2024-04-04* Thank you for adding the ability to track naps :) **Developer response:** Thank you for your feedback. With Sleep Details 3.5 you can now log naps. Let us know if you have any questions. You can contact us at contact@sydvesti.com ### 5/5 — Great interface *2024-01-19, version 3.2* I love this app’s ux simplicity and its implementation on the watch. Highly recommend. ### 5/5 — Good for blind people *2023-09-20* I have other Watch apps and some of them are confusing to use because I can’t see I use voiceover, but this app is really easy to use. Only problem is today it didn’t give me a score which is strange, but I’m sure to correct itself. **Developer response:** Thank you so much for your feedback. Please let us know if the problem doesn't go away and we will try to find out what could cause the issue on your device. You can contact us at contact@sydvesti.com ### 5/5 — Memory Puzzle *2023-07-08* My app is always showing the question marks (test) without my first being able to see the puzzle. **Developer response:** The iPhone app should only open the test if you have at some point opened a puzzle on your iPhone. The good thing is that you can at any point see the same puzzle in the Sleep Details Apple Watch app. We need to add the same possibility to the iPhone app. Let me know if you can't find the puzzle on the Apple Watch app ( contact@sydvesti.com ). So sorry for the inconvenience --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*