Three mornings, one honest observation
These are fictional records for learning how to read a chart. They are not a recommended routine or data collected from Cocoon families.
| Day | Morning wake | Next sleep starts | Awake interval |
|---|---|---|---|
| Monday | 07:00 | 08:20 | 80 minutes |
| Tuesday | 07:15 | 08:45 | 90 minutes |
| Wednesday | 07:05 | Not recorded | Unknown |
A supported observation is: “On the two mornings we recorded, the next sleep began 80–90 minutes after waking.” We cannot calculate Wednesday’s interval or say this proves the right wake window. Two entries alone are a small snapshot.
A useful next step is to keep noticing the morning wake-up and first sleep on other days. There is no need to shift bedtime because one row looks different.
Compare like with like
Choose one question, such as “Are our mornings starting earlier?” Compare morning wake-up times using the same definition. Do not mix waking briefly for a feed with getting up for the day without labelling the difference.
A whole-day sleep total needs the whole day’s records. If you logged only naps, label the result “recorded naps”, not “total sleep”. A blank day is missing information, not zero hours of sleep. Notes such as “travel day” or “grandparent logged on paper” can explain why a day is not comparable.
An average is not the whole picture
Consider three fictional nap lengths: 30, 35 and 100 minutes. The mean is 55 minutes; the median, or middle value, is 35 minutes. Neither means baby actually took a 55-minute nap. Showing the individual durations helps explain the summary.
Use the middle value and the spread to describe what you recorded. Keep longer naps visible rather than deleting them just to tidy a pattern. Correct a duration only if the record itself was wrong.
Leave room for change
The NHS explains that babies have their own sleep patterns and those patterns change. Source: NHS. A chart cannot establish why a particular night was different, diagnose a “regression”, or decide that a night feed is unnecessary.
If there is a concern, take a short summary plus the original records to your clinician. “These are the days we recorded, and this is what changed” is more useful than a confident explanation the data cannot support.
Use the feeding and sleep worksheet to keep dates and missing periods visible, or read how Cocoon’s estimates work.
