🌙 The Early Bedtime Myth (and Why 7 PM Actually Works)

It seems counterintuitive: if your baby goes to bed earlier, surely they'll wake up earlier? In fact, research and clinical experience consistently show the opposite. Babies who go to bed at 6:30–7:30 PM typically sleep later and wake less at night than babies who go to bed at 9 or 10 PM.

Why? It all comes down to cortisol. When a baby stays awake past the end of their ideal wake window, the body releases cortisol — a stimulating stress hormone — as a survival mechanism. This cortisol doesn't just disappear at bedtime; it lingers, causing lighter sleep, more night wakings, and earlier morning waking.

An overtired baby isn't a baby who will sleep in. It's a baby who will take 45 minutes to settle, wake at 10 PM, 1 AM, 3 AM, and 5 AM, and then be up for the day at 5:30. Sound familiar?

Early bedtimes are especially powerful in three situations: after a day of short or missed naps (use a 'rescue bedtime' as early as 5:30 PM), during developmental regressions, and during the transition between nap schedules (e.g., moving from 2 naps to 1).

What counts as an early bedtime? For babies under 18 months, 6:30–7:30 PM is the sweet spot. For toddlers 18 months–3 years, 7:00–8:00 PM. Consistently staying within these windows leads to better total sleep than any other single change.