As I have stated many times before on this site, sleep is really the only thing that new parents want. They want their baby to sleep and they want to be able to sleep themselves. And they want both to happen in big 8-10 hour chunks. (We still suffer from a sleep deficit stretching back 8 months.) In my quest to understand and try to crack Trixie’s sleep code, I introduce yet another way to quantify her sleep habits: The Sleep Probability Spectrum.
The Sleep Probability chart is simply an average of Trixie’s daily Sleep Maps for a given set of days. The averages are translated to a gray-scale spectrum. The stronger the contrast, and the larger the pattern, the more predictable her sleep habits for the time period examined. It’s designed to collapse a range of time into 10-minute increments on a 24 hour scale in order to figure out if there are any patterns developing.
The probability of Trixie being asleep at a particular time of day for the given range of days is expressed as a gray-scale value. Solid black represents a 100% probability that she was asleep. Solid white means a 100% probability that she was awake. The gray areas represent different degrees of uncertainty regarding her sleep schedule. 50% gray indicates a complete lack of schedule. It means there was an equal (or completely random) chance of her being awake or asleep.
What kind of predictive value do these Probability Spectrums have? Unfortunately not as much as I’d I hoped – or at least I haven’t figured out a way to apply them yet. But they are great for looking back at her progress over the past five months. Of course, when you start at the bottom, there’s nowhere to go but up.