Ok-to-wake clocks: Hatch Rest, Mella and Groclock

Our recommendations

Our pick

Hatch Rest (2nd Generation)

The Rest does the most of the three, and parents especially like changing the light from a phone without walking in. Everything beyond the basics lives in that app, though.

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Worth knowing.

• Owners say it takes weeks to months of consistent use before kids reliably wait for the wake color. A few say the clock drops its app connection
• Because the night light and sound machine are built into the wake clock, the nightstand holds a single device
• You can tune the glow color and the sound in the app until you land on a cue your kid actually notices

Community discussions: r/toddlers

Best simple clock

LittleHippo Mella

For a toddler who responds to faces more than colors, the Mella’s waking face is the friendliest cue here, and it needs no app once it’s set. Watch for a kid who stares at it instead of sleeping.

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Worth knowing.

• The yellow pre-wake phase before green is fixed, and owners say it can wake light sleepers earlier than planned
• A sleeping face that wakes up is readable by kids too young for colors or numbers
• At bedtime the Mella runs its own sounds and night light, so it isn’t only a morning device

Community discussions: r/toddlers

Screen-light pick

Tommee Tippee Groclock Sleep Trainer Clock

Kids get the Groclock’s sleep-and-wake picture without an app in the loop. Keep the instructions handy for daylight saving, because the buttons confuse plenty of parents.

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Worth knowing.

• On r/UKParenting, owners call the buttons unintuitive. Changing the time, or resetting for daylight saving, sends them back to the instructions
• Stars on the screen mean it’s still sleep time, and the sun comes up when it’s okay to get out of bed
• Sleep, nap and wake times are set separately

Community discussions: r/Parenting · r/UKParenting

How I narrowed it down

• Took each clock’s age range and type of cue, whether color, face or symbol, from the maker’s page.
• Parent threads on r/toddlers, r/Parenting and r/UKParenting supplied the after-purchase view. Groclock owners keep getting lost in the buttons, and Hatch owners say kids need weeks to months of consistent use before they wait for the color.
• Noted which clock needs a phone for what. The Hatch Rest keeps core controls on the device, and the Mella and Groclock work with no app.

I'm Matt, a dad of two boys. If we've used something at home, the card says personally tested. The rest I read up on. I keep a weekly list of kids' product recalls. How I pick.