Sleep Frequently Asked Questions
About the OnlyZZZs app
What is OnlyZZZs?
OnlyZZZs is a simple sleep app that plays calming ocean waves to help you relax and fall asleep.
It was designed to remove distractions and give you a peaceful, consistent sound environment at night.
How does the app work?
The app has a single screen with one control:
- Press PLAY to start the ocean sound
- Press STOP to end it
The sound loops continuously so it can play all night.
Do I need an internet connection?
No.
OnlyZZZs works completely offline once it is installed.
You can use it anywhere, even in airplane mode.
Does the app contain ads?
No.
OnlyZZZs has:
- No ads
- No pop-ups
- No interruptions
Does the app collect my data?
No.
OnlyZZZs:
- Does not track you
- Does not collect personal information
- Does not use analytics
- Does not require an account
You can use it privately and anonymously.
Is there a subscription?
No.
There are:
- No subscriptions
- No hidden fees
- No in-app purchases
The app is designed to stay simple and distraction-free.
Why is there only one sound?
Most sleep apps offer hundreds of sounds and features.
But too many choices can keep the brain active at bedtime.
OnlyZZZs was designed around one idea:
Simplicity helps the mind relax.
The ocean sound was carefully chosen because it:
- Has a natural rhythm
- Masks sudden noises
- Helps the brain settle into sleep
Can I leave it playing all night?
Yes.
The sound loops continuously until you press STOP.
It is designed to run in the background while you sleep.
Will it drain my battery?
OnlyZZZs is designed to be lightweight and efficient.
For best results:
- Plug your phone in overnight
- Or ensure your battery is sufficiently charged
The sound stopped during the night. Why?
Some phones use aggressive battery-saving settings that can stop background apps.
If this happens:
- Open your phone settings
- Find Battery or App power management
- Disable battery optimisation for OnlyZZZs
This allows the app to run smoothly while you sleep.
Does the app work with the screen off?
Yes.
OnlyZZZs is designed to continue playing even when:
- The screen is off
- The phone is locked
- The app is in the background
Is OnlyZZZs safe for children?
Yes.
Because the app:
- Has no ads
- Collects no data
- Requires no accounts
- Contains no external content
…it is suitable for general audiences.
Why ocean waves instead of white noise?
Ocean waves have:
- A natural, repeating rhythm
- Gentle variation
- No harsh tones
This helps the brain relax more naturally than artificial or mechanical noise.
Can I use headphones or speakers?
Yes.
You can use:
- Phone speakers
- Wired headphones
- Bluetooth headphones
- Bedside speakers
Whatever is most comfortable for your sleep environment.
Support and contact
How do I contact support?
If you need help or have feedback, please email:
We aim to respond as quickly as possible.
Where can I read the privacy policy?
You can view the full privacy policy here:
