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Toddler sleep guides
Bedtime problems and night waking affect 20 to 30 percent of young children. These guides pull together the research, our own dawn-time data for 23 cities, and a practical plan, each with sources you can check.
Why does my toddler wake up at 5am?
Toddler waking at 5am? Our 2026 first-light data for 23 cities shows when daylight reaches the bedroom, plus what the sleep research says to change.
How do I teach my toddler to stay in bed until morning?
A step-by-step plan to keep a toddler in bed until morning, built on the bedtime pass trials and the AASM review of 52 behavioral sleep studies.
What does research say about toddler early waking and sleep clocks?
Nine key studies on toddler sleep need, body clocks, light, the bedtime pass and OK-to-wake clocks, with each finding and its limits in one table.
OK-to-wake clock comparison: which works without a subscription or WiFi?
Hatch Baby, Hatch Rest, Mella, Groclock, OK to Wake! and Cozy Critter compared on price, subscription, WiFi, wake signal and pre-wake countdown.