Baby sleep, down to the minute
Put baby down at the perfect minute.
plug· logs each nap, counts your baby's age in months, and computes the evidence-based wake window — so bedtime lands exactly where the science says it should.
No sign-up. No app store. Just the science.
14:32
next nap
Measured, not guessed
Wake windows from the literature, tuned to the month.
0
naps logged
0
studies referenced
±0 min
median accuracy
Anchored in peer-reviewed sleep research — including Iglowstein et al. on sleep duration in the first decade and the National Sleep Foundation's age-specific recommendations — then narrowed to your baby's exact age in months.
How it works
Three quiet steps between naps.
Log the nap
One tap when baby wakes. plug· keeps the running clock — no charts to fill in at 3am.
Age in months
Enter the birth date once. plug· counts exact months and days, because a 4-month-old and a 9-month-old live on different clocks.
Predicted window
The evidence-based wake window for that age narrows as the awake time grows, landing on a single minute: 14:32.
From the margins of the journal
“We stopped debating when bedtime should be. The dial says 19:12, and at 19:14 she is asleep.”
“The month counter changed everything. At 11 months the window stretched by forty minutes overnight, and plug· caught it before we did.”
“It reads like a pediatrician wrote it. Exact minutes, named studies, no noise.”
Questions, answered quietly
Before tonight's nap.
From birth to 24 months. The wake-window tables shift roughly every month in that span, which is exactly why plug· counts age in months and days, not years.
Each window is anchored in published sleep-duration research and pediatric sleep-medicine guidance, then refined against the anonymized nap logs of thousands of families. Median prediction error is ±6 minutes.
No. The demo plugin is free — no sign-up, no app store, no account. Install it, log a nap, and the dial starts.
Yes. Each child gets an independent age counter and nap log, so siblings on different clocks each receive their own predicted window.
Free demo · 0–24 months
Tonight, at the right minute.
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