The Real Reason Toddlers Won't Sleep on Airplanes

Does this sound familiar?

You pick the window seat. You time the flight around naptime. You even pack the melatonin gummies, just in case.

And your toddler still won't sleep.

Here's the part that took me way too long to learn: it's not about how dark the cabin feels to you. Researchers at the University of Colorado Boulder found that even dim light, as low as 5 to 40 lux, which is roughly what a "dimmed" airplane cabin actually is, suppressed melatonin in toddlers by an average of 77.5%.

Not a typo. Seventy-seven percent.

And it doesn't bounce back the second the light is gone, either. Melatonin stayed suppressed for at least 50 minutes after the light source was removed.

So if you've ever felt like your kid was wired for no reason on a "dark enough" flight, they weren't being difficult. Their body was doing exactly what dim light tells it to do: stay alert. No gummy can out-supplement that.

This is the entire reason NapNest exists. Not a sleep mask, not a hope-for-the-best dimmed cabin. An actual blackout, built for a real airplane seat.

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