Sun to Moon Sleep Clock - A Kid’s Sleep Trainer App for iOS and Android

Sun to Moon Sleep Clock - A Kid’s Sleep Trainer App for iOS and Android

Sun to Moon Sleep Clock is an interactive night clock app that helps make bedtime more fun and consistent for kids.  With a star countdown, visualised sunrise, collectable snooze rewards and gifts for the Sun and Moon characters, it makes gauging the time until morning much easier whilst offering a few gentle incentives to stay in bed till morning.

In its simplest form you just set the wake-up time then click the 'Good night' button to switch the clock to night mode,  but there are also options for setting sleep sounds, wake-up sounds, reading times etc.. depending on your requirements. You can also customise the artwork by collecting snooze rewards which are exchanged for gifts for the Sun and Moon characters including hairstyles, accessories, face paint, custom counters and more. The app can also be tailored for special events such as Christmas, birthdays and Easter to help build excitment whilst averting the dreaded 4am wake-up call.

All the artwork used in the app is custom made in a style that has evolved from my life as an artist.I will continue to add functionality and new artwork whenever I get the time, so feel free to email me with suggestions!

Sun to Moon Sleep Clock is available for Android, Amazon and iOS devices.  It can also be used completely free as part of the Amazon Underground scheme.  Full details can be found at or you can download it using the links below:

App-Store-Icon play-store-icon amazon-app-store

Sun to Moon Sleep Clock Moon Shop

Moon reading time

Moon sleeping

Comments (closed)

Thank you! You just saved our sleep (foolish parents who forgot gro clock on night away)

Posted by Daze on Saturday, 11th October 2014 at 7:09PM

You’re welcome.  I know that feeling!

Posted by Mike on Saturday, 11th October 2014 at 9:39PM

Thankyou so much! Your app is awesome!

Posted by Stacey on Tuesday, 2nd February 2016 at 5:31AM

This app is amazing, but I have one suggestion that would really make it perfect for our situation.  I would like the sleep sound to keep running even after the wake/sun time starts.  We have 2 kids sleeping in the same room, and would like out toddler to know its ok to come out of his room, but leave the sleep sound running so our baby can sleep undisturbed.  We currently have the sleep sound timer set to infinite, but it silences once the wake up time is reached.

Posted by Mark on Wednesday, 12th April 2017 at 11:24PM

Hi Mark, 

It’s great to get ideas for the app from people who are using it in different situations to my own. I think I could make this work by having an option to select the current sleep sound as the wake-up sound and vice-versa - just in case anyone wants to sleep to the sound of Bongos!  That would enable you to have a sleep sound that effectively continues after sunrise.

I am currently working on some new artwork for the app so it may be a few weeks before I can roll this out but I’ll definitely include it in the next release.

I hope you don’t mind me asking but if you are finding the app useful, would you be willing to leave a rating?  I only ask because despite lots of people using the app it has proved really hard to get much feedback and it really helps me promote the app as well as encouraging me to keep developing it.  No worries if not but I just thought I’d ask.

Thanks for the suggestion and let me know if you think of anything else!


Posted by Mike on Thursday, 13th April 2017 at 8:14PM

I haven’t tried your app, but it looks very nice. We are looking for an app that can replace this:

We have two children in the same room, and would like them to look at the iPad to see if there is a sun og a moon to know if it is time to get up or not (and avoiding them yelling “I’m awake! Is it morning? And waking up the other). We don’t need any sound, necessarily, just the picture/light.

Is your app for us?

Posted by Ingelinn Chemosop Strømme Sivertsen on Monday, 7th August 2017 at 8:52AM

Hi Ingelinn.  It sounds like it is what you need and can perform a similar task to the product you linked to.  We have found that our children stick to the Sun/Moon sleep cycles pretty well and won’t get out of bed until Sun arrives.  One issue a few parents have raised is that their children can be tempted to play on the device when they should be sleeping. This is not a problem we have ever had with our 2 so it really just depends on the individuals and maybe a physical clock would be better if your child is too distracted by having a tablet in the room at night.  I have also designed a DIY stand/case to help with this issue at  All sounds can be turned off in the settings and you can customise the artwork if you want 😊  Hope that helps but let me know if you have any more questions.  Michael

Posted by Mike on Monday, 7th August 2017 at 9:09AM

Hi!  I just bought the app! I love it. It has such great customizations. The only question I have is it would be great if we can make the actual time bigger than the moon or sun icon. Maybe a setting to be put in to make it half the screen size and shrink the sun or the moon? Or someway to make the digits bigger?  Thanks!

Posted by Shawn on Saturday, 11th August 2018 at 11:34PM

Hi Shawn,

What a great idea - thanks for sharing your experiences with me. It’s really useful getting people’s feedback and helps me figure out what would actually be useful, so let me know if you have any more ideas. I will try and implement a ‘big digits’ mode for the next release!

Posted by Mike on Sunday, 12th August 2018 at 7:45PM

Hi I got this app for my son who is 6 and has autism.  He used a gro clock as a trial and it seemed to help. When we had to give the clock back I found this app to replace it which is great as he has his own tablet but my problem is that he can just turn it off by pressing the back or the home button if you could make it so it needs a parent password to wake up and leave the app that would be great. Many thanks

Posted by melanie brabin on Wednesday, 9th January 2019 at 3:59AM

Hi Melanie,

Thanks for your comment and this is definitely one of the most common requests for my app.  Whilst it is not possible to fully lock a device from within an app, most devices (unfortunately Kindle Fire devices are not included in this) offer a way to lock down the device to a single app from the settings.  It is called kiosk mode and this article ( offers good instructions for setting it up on various device types.

I hope this helps and that the app is useful for your son.


Posted by Mike on Wednesday, 9th January 2019 at 8:16AM

Thank you for this app! I’ve bought it and am currently loading it to my 4 year old’s iPad. It will be tonight’s experiment. While he’s been decent about sleep he’s just started getting up at 4am and we hope this will help. One suggestion - for the big digits clock option it would be nice if the seconds could be disabled. It’s quite distracting and I’m imagining my 4 year old will make a game of watching them count. We’ll disable the clock for now but since we’re also trying to teach him numbers and time we’d love to have the clock on.

Posted by Leah on Saturday, 2nd February 2019 at 6:50PM

Hi Leah.  Thanks for your comment and for installing my app.  Having the option to remove the seconds counter is a really good suggestion and something I hadn’t thought of before so I appreciate you bringing it to my attention.  As it happens I am working on an update for the app at the moment which I hope to push out in the next week or so. I’ll see if I can include your idea in that release.  In the mean time I hope the app works out for you and buys you some extra sleep!

Posted by Mike on Saturday, 2nd February 2019 at 9:37PM