Bedtime Calculator
What time should my baby go to bed tonight? Estimate their bedtime based on their last nap.
Bedtime Math: Automatically accounts for the longer final wake window.
How is bedtime calculated?
A baby's bedtime is rarely a fixed time on the clock. Instead, it is directly driven by when their last nap ended and how long they can comfortably stay awake (their wake window).
The final wake window before bed is typically the longest wake window of the day. Our calculator accounts for this biological stretch to estimate an optimal Bedtime Opportunity Window.
Remember that sleep needs vary between babies. If your baby takes a very short final nap, they may need an earlier bedtime to prevent overtiredness. Always watch for your baby's unique sleepy cues (such as yawning, staring blankly, or rubbing their eyes) to decide the final time.