The thing I find most impressive about this isn't the blanket but rather the data acquisition: How do new parents manage to accurately and consistently record every time their baby wakes up or falls asleep?
(Then again, I usually use a sleep tracker, and aside from a quick glance in the morning, never ever look at the data again. But I figure baby tracking has a decent amount of overhead, and parents are already overworked and overtired enough as it is...)
Tracking is genuinely useful though when you’ve noticed something and are trying to gather evidence of a pattern to bring to a healthcare professional - for example around sleeping or feeding.
We kept logs in a shared Apple note. Looking back at it now, it reads more like a tale of two people’s slow descent into madness than something that could be turned into a knitting pattern.