1. Bedtimeeyes closed and a red light
  2. Before wake-uporange 15 minutes before
  3. Wake-up timeeyes open, and green if you switch it on
What your child sees on ZAZU Sarah the Rabbit, drawn from ZAZU’s own description. A drawing, not a photo.

The tradeoff: The manual shows one bedtime and one wake-up time for every day and no nap timer, ZAZU does not say how long a charge lasts, and ZAZU’s own shop does not sell it (Dutch and French shops do).

From ZAZU’s own pages and manual: the sources.

V3 (2025) · EU · Sold outside the US (checked on 30 October 2026)

Plan the times for this clock →Compare with another

Set this clock up

  1. Charge Sarah with the USB cable in the box and a good USB adapter: a red light shows while it charges and goes out when it is full. Hold the power button to switch it on.
  2. Hold TIME for 3 seconds to set the clock: choose 12 or 24 hours, then the year, month, day and time.
  3. Hold ALARM for 3 seconds to set the sleep time (the eyes close, and the red night light and a melody can play for 30 minutes), the wake-up time (the eyes open), the brightness of the orange light 15 minutes before and of the green light at wake-up, and the wake-up sound and its volume. Choose 0 for anything you do not want.
  4. Press ALARM to choose what runs: the sleep time only, the sleep time and the wake-up time, the wake-up time only, or nothing. The display shows which.
  5. When the wake-up sound plays, tap the silicone shell to snooze it for 5 minutes; it stops by itself after a minute. At other times a tap on the shell switches the night light on and changes its color (white, red, pink, blue, changing colors or off); it goes off by itself after 30 minutes.

ZAZU says Sarah is not a toy and should be used under parental supervision, warns of a strangulation risk from the long cable, and says the battery should only be charged with an adult present.

Check the age warning and whether your child is ready separately, and see how to set an OK-to-wake clock for other clocks.

Setup and everyday controls

You set it with the buttons on the clock. No app is needed, and no account.

How you set it
Set on the clock
Buttons on the clock
Yes
Change it from your phone
No
Account needed
No

When grandma, a sitter or the other parent sets it

Anyone can use the buttons on the clock; there is no app to share. Show the next grown-up how to change the times and switch the light on. The manual does not mention a lock.

App or buttons: which suits your family?

Schedules, light and sound

The manual does not say whether it switches on by itself.

What you can schedule on this clock

  • Bedtime light at a set timeYes
  • Wake-up light at a set timeYes
  • Nap timerNot in the manual
  • Different weekend timesNot in the manual
Wake-up light at a set time
Yes
Bedtime light at a set time
Yes
Several light or sound changes a night
No
Silent wake-up light
Yes
Alarm sound
Yes
Sound machine
Yes
Dimmable light
Yes
Shows the time
Yes
Dimmable time display
Yes
Time display can turn off
Yes
Child lock
Yes

Features the maker’s manual doesn’t mention aren’t listed here, so the clock matcher won’t suggest this clock for them.

An orange light comes on 15 minutes before the wake-up time, at the brightness you choose, or set it to 0 to leave it off.

A nap timer and a nap wake-up time work differently. The planner keeps them separate.

Clocks changing, or an early riser? Move the wake-up light in small steps with the clock-change planner.

Without Wi-Fi or a phone

It has no app and needs no Wi-Fi: you set and change everything on the clock.

Power, and what happens in a power cut

Plugged in

When the plug comes out, it keeps running on its battery.

Runs on battery · Built-in rechargeable battery, charged with the USB cable in the box

Runs on battery?
Runs on battery
Power connection
Built-in rechargeable battery, charged with the USB cable in the box

See why a battery that keeps the settings is different from one that keeps the light on.

Subscription and included parts

No subscription: everything works on the clock.

In the box

  • Sarah
  • USB cable

Do OK-to-wake clocks need a subscription?

When your child outgrows the light

ZAZU Sarah the Rabbit can play a sound at its wake-up time, which you switch on or off. It has no alarm with a time of its own, so on school mornings the light and the sound come together. When to move on to a kids’ alarm clock.

Check it in your home

While you can still return it, try the buttons you will actually use. These are checks for you to make; we have not tested this clock.

  • Find how to change the times and switch the wake-up light on, then check it shows the light and sound you chose.
  • Check the brightness, the volume and where the clock stands, using the maker’s placement advice. Check what the lock stops and which buttons still work.
  • Use the clock’s own preview or test, if it has one, rather than unplugging it or resetting it to see what happens.
  • Show the other parent, a grandparent or the sitter the buttons. Read what to do after a power cut before you need it.

Agree on what the light means and what to do if it does not come on, then keep the manual or the maker’s help page with your plan.

Show your child what this clock’s light means, and leave a note for the sitter.

If the light does not come on, check the time, the mode and the power before you reset the clock.

Questions about ZAZU Sarah the Rabbit

Does ZAZU Sarah the Rabbit need an app?

No. You set it with the buttons on the clock, and no account or Wi-Fi is needed. App or buttons? →

What does my child see on ZAZU Sarah the Rabbit?

Bedtime: eyes closed and a red light. Before wake-up: orange 15 minutes before. Wake-up time: eyes open, and green if you switch it on. See the drawing →

What happens to ZAZU Sarah the Rabbit in a power cut?

Sarah runs on its built-in rechargeable battery, so a power cut does not stop it. ZAZU does not say how long a charge lasts, and the battery cannot be replaced. Battery or memory backup? →

Can ZAZU Sarah the Rabbit do naps?

The manual does not say whether it has a nap timer. Nap timers vs nap wake-up times →

Can I set a different time for weekends?

The maker’s pages do not say, so plan to change it by hand at the weekend. Plan a new wake-up time →

Does ZAZU Sarah the Rabbit have an alarm?

It can play a sound at the wake-up time, which you switch on or off. It has no alarm with a time of its own. Kids alarm clocks →

Can grandma or a sitter change it?

Yes, with the buttons on the clock; nobody needs an app or an account. Sharing a clock →

The maker’s pages

Details can differ between versions and countries. Dates show when we last checked something that changes, like stock or a recall. Every source we use