The toolkit
Tools to record, compare and understand your baby's sleep.
The three shared tools compare your own settings and keep the same recorded day. Find age-specific reading and related guides below.
Wake Window Calculator
Record the last known wake and compare a next-nap range using an interval you choose.
Nap Schedule Generator
Compare the rest of your day using recorded events and your own planned nap count, durations and intervals.
Bedtime Calculator
Compare an evening range from the last recorded wake and your own interval. Keep facts separate from plans.
Sleep Regression Checker
Organize the sleep changes you notice and find reading for your age and situation. No regression diagnosis.
White Noise Player
Play original synthesized sound loops with volume controls and a stopping timer.
Browse by age
Wake windows and nap schedules, with context for each age.
Read age-specific context, then compare a day using your own settings.
Wake windows
Nap schedules
Browse by question
Missed naps, early mornings, changing patterns and other sleep questions.
When naps are too short
Use the timing tools first, then read the troubleshooting guide when the day keeps collapsing after 30-minute naps.
When mornings start too early
Read about early waking, then compare your own timing assumptions if you already have a routine to work from.
When bedtime keeps getting later
Use this path when bedtime drifts late, the last nap pushes the whole evening, or one rough day starts repeating every night.
When a nap gets skipped and tonight is unclear
Record what happened when a nap was missed, then review the guide and compare your own evening assumptions.
When a nap ends too early and the day needs a reset
Use this path when a nap stopped after one cycle, the last nap was too short, or you need to recalculate the rest of the day fast.
When you think it is a regression
Use the observation guide to organize what changed, then read the topics that fit your situation.
When sleep breaks in the middle of the night
Use these guides to organize observations when your baby spends time awake overnight. The tools do not identify the cause.
When the old nap count no longer fits
Read about changing nap patterns, then record what you notice.