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Hi Vivian,
Given that he is waking after 1 sleep cycle but easily falls back to sleep and then stays asleep until morning I wouldn’t necessarily call it a false start. I really do think with time, this brief wake at the start of the night will just stop happening.
It’s also fantastic to hear that his naps are getting longer! If he wakes between sleep cycles but self-soothes back to sleep, it shows he’s starting to connect these cycles.
As for calculating a baby’s age, we typically use their birthdate as a marker. For example, if your baby was born on March 2nd, he would be considered 1 month old on April 2nd, 2 months old on May 2nd, and so on. This method is used because a month isn’t exactly four weeks—it’s closer to 4.3 weeks.
If you’re trying to figure out your baby’s age in weeks instead of months, you can multiply the number of months by 4.3. For instance:
- At 4 months, it’s approximately 17 weeks (because 4 times 4.3 equals about 17.2).
- At 5 months, it’s roughly 21.5 weeks (since 5 times 4.3 is 21.5).
However, as I said it’s generally simpler to track months based on the birth date. If your baby was born prematurely though, you would use the due date rather than the birth date to calculate their corrected age.
I hope that makes sense!
Emma