Choose your night.
Set bedtime and wake time. SleepGuard follows your schedule, even after you close Settings.
A bedtime for your Mac
Let the day
be done.
A quiet moonlit sky. A little space before “one more.” Give your screens a stopping point.
Free. No account, no purchase. macOS 14+
Less to do. More room to rest.
A small boundary.
Your own terms.
Let the moon take over.
A glowing moon and quiet stars cover your screens. See how much time is left until morning.
Take a little more time.
Enter your unlock code for a short grace period. When it ends, the night sky returns.
A moment to pause
Try a quieter
good night.
Need to finish something? There’s a way through. Try the unlock code below and feel how grace works.
Interactive illustration. Five-second grace for this demo.
23:30
Time to sleep.
Tomorrow will thank you.
Enter 1234 for a 5-second demo of grace.
Unlock, then use Settings to turn protection off.Made for your Mac
A quiet night.
A simple setup.
Tonight can be different
Make room
for tomorrow.
Your schedule stays on your Mac.
No account. Just SleepGuard.
Protection runs in the background.
Manage protection in Settings.
SleepGuard for Mac
Version 1.2Apple notarized
Open the DMG, drag SleepGuard to Applications, then open it. Need help? hello@karmayogasoftware.com
Verify your download · SHA-256
1217e9ca64e5fdf2a6f95717100a802396aa8fcabfb355392e68889fee29cd29Before you call it a night
A few things
to know.
What happens when bedtime starts?
A moonlit overlay covers every display. Your main display shows the clock, your message and an unlock code field. The background agent keeps enforcing your schedule when Settings is closed or the menu icon is hidden.
What if I need more time?
Enter your unlock code for your chosen grace period. The overlay returns when grace ends. To stop protection, unlock and open Settings, then choose Turn SleepGuard off. Turning protection on or off during your sleep window requires the unlock code.
Does it work after midnight?
Yes. A schedule like 23:30 to 08:00 ends the next morning, using your Mac’s local time. Equal bedtime and wake time means the schedule is never active.
Is it impossible to bypass?
No. SleepGuard is a voluntary boundary, not parental control or a security lock. Someone comfortable with Terminal can unload the background agent. Command-Q does not dismiss the overlay, but your unlock code and the Settings off switch provide the normal way out.
What stays on my Mac?
Your schedule, message and unlock code hash are stored locally. No account is required. It doesn’t track your sleep or promise a particular sleep outcome.
How do I uninstall SleepGuard?
Uninstall: choose Uninstall SleepGuard… from the moon menu. Confirm to remove the app, background protection and saved settings. During your sleep window, your unlock code is required.
Why does macOS show a first-open warning?
This Mac download is Developer ID signed and notarized by Apple. macOS may still ask you to confirm opening an app downloaded from the internet. Open the DMG, drag SleepGuard into Applications, then open it.
A LITTLE SCIENCE. A REASON TO PAUSE.
Why bedtime
needs a boundary.
The pull of “one more.”
Phone notifications disrupted performance on an attention task even when participants did not handle their phones. Separate research found that social rewards influenced when people posted on social media. These studies did not test SleepGuard.
Read the research: Stothart et al., 2015 · Lindström et al., 2021
Light tells your body it’s daytime.
Light at night can suppress melatonin and shift the body’s daily rhythm. In the research described here, blue light had a stronger effect than green light at comparable brightness. This is research about light exposure, not evidence that SleepGuard improves sleep.
Read the research: Harvard Health · Blue light and sleep