Is your toddler up before the sun every morning?

No. Snoozaroo runs on an Android tablet or phone you already have, plugged in across the room. iPad is coming very soon.

Yes. An OK to wake clock (also written okay to wake clock), a sleep trainer clock and a sleep training clock are names for the same idea: a clock that shows a young child when it is still sleep time and when it is OK to get up. Snoozaroo is one as an app: the stars go out one by one, and the sun comes up at the wake time you set. See what an OK to wake clock is, and when to start.

Not in the usual sense. An alarm clock wakes a child up. A sleep clock is for a child who is already awake: it shows them whether it is still sleep time or OK to get up. Snoozaroo can play a short, gentle wake sound when the sun comes up, if you want one.

Yes. The sleep clock, Pyjama Ted, the stars, naps and the basic sounds are free, and stay free after the 14-day Plus trial. Plus adds every stock pal, remote control for every grown-up, the full sound library, the activities, the morning present, and bedtime routines with lullabies.

From about two and a half, with most children understanding it by three. Before that, the stars and the pal are still a calm bedtime signal. More on the signs a child is ready.

Yes. Naps are part of the free clock, each with its own stars and its own sunrise, and the same clock can mark the end of quiet time once the nap has gone. See a nap clock and quiet time clock.

With Plus, yes. You choose the steps, such as bath, teeth, pyjamas and a book, and their pal does each one with them. Then a lullaby plays as the screen dims. See the bedtime routine app.

Yes. Take the tablet, or use a phone. In a different time zone Snoozaroo asks whether to keep home times or use the new time zone from the next sleep, and nothing changes unless you choose. See a sleep clock for travel.

Bedtime and wake-up are the clock times you set, so when the clocks go forward at the end of September and back at the start of April, the tablet’s clock changes with them and the stars and the sun follow. Every family in New Zealand gets both changes, so if you want to move the times by ten or fifteen minutes a day for a few days beforehand, change them in Parent mode and the screen has them from the next sleep. The week-before steps are in our UK guide to the clocks changing; the dates in it are the UK’s. If the change brings early morning waking, see why toddlers wake at 5am.

The screen stays on through the sleep, dimmed, showing the still night scene. The pal, the stars and the grown-up PIN work on the screen itself, even offline. Only a change sent from your phone needs the tablet online, and the app tells you if it did not apply.

On Android, Snoozaroo asks once for Do Not Disturb access, then turns its own quiet mode on for each sleep and off at wake. Clock alarms set on the tablet still ring. Snoozaroo does its best here, and cannot promise that no other app will ever make a sound.

You choose Keep Plus or Move to Free; doing nothing means Free and no charge. A sleep that is running finishes as normal, and your settings, your toy shelf and any pal you own stay.