When Bedtime Suddenly Gets Scary: Helping a Toddler Who's Afraid to Sleep
By Terry Morgan · October 23, 2026 · 5 min read It can feel like a switch flipped in your house. A week ago, your little one went down with a story and a kiss. Now there are tears the moment the light clicks off, urgent reports of something in the wardrobe, and one more request — water, a hug, another check behind the curtains. If your toddler is suddenly afraid of bedtime, take a breath: you haven't broken anything. Right around age three, a child's brain changes in ways that make the dark feel much bigger than it used to. Why the fear arrives out of nowhere around age three Two developments land at almost the same time. The first is imagination. A three-year-old can now invent a creature, give it a hiding place, and picture it clearly — but can't yet test whether it's real. The same imagination that builds a whole pretend kitchen in the afternoon builds worries after lights-out. The second is separation. Your child now understands, in a new and deeper way, that ...