This is the website of Abulsme Noibatno Itramne (also known as Sam Minter). Comments here or emails to me at abulsme@abulsme.com are encouraged... or follow me on twitter as @abulsme.

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Post Baby Sleep

Although the frequency has slowed, I still occasionally get people asking how I am sleeping what with a baby in the house and all, and everything everybody always says about no sleep when there is a new baby.  I’ve been meaning for a long time to post about this, since at least October, but am just now getting around to it.  Anyway, because I am certifiable and track everything, I can give some quantitative answers to the sleep question.

Here is a relevant chart:

annotatedsamsleep20091129wmonthlevelsmoothing

This is a chart with daily values of the percent of the previous seven days I spent asleep.  (Click the chart for a larger version.)

Unfortunately I did not start tracking this number until August even though I had the capability to do so earlier.  If I had started earlier we would have had a better baseline to do a longer term before and after comparison.  In this chart I have used the smoothing factor for the trend line that I usually use for my one month charts, rather than what I would normally use to show the amount of time shown here.  This allows me to show a little more responsiveness in the trend line to short term changes.  For a current chart with my normal smoothing values, see here.

Anyway, if one looks at how much sleep I was getting immediately before Alex was born, it is at about the 30% level.  That would be about 7.2 hours per day of sleep.  You can clearly see the deep dive down to about 14% (about 3.4 hours per day).  But this does not last very long.  17 days later I recover to the immediate pre-Alex level.  Of course I don’t stay there for long.  You can see I move up and down between about 24% (about 5.8 hours a day) and 31% (about 7.4 hours a day).  If I had to hazard a visual guess at an average for October and beyond, I’d say about 27% (about 6.5 hours per day).

Because I only have the month or so of pre-Alex data though, it is hard to see if there is a distinct before and after longer term change.  As you can see, I did have a pre-Alex peak of 34% (about 8.2 hours per day) that has not yet been equaled.  But it impossible to say if that was an abnormal peak.  Also, there was a dip down to 20% (about 4.8 hours per day) at one point when I was staying up late on a couple of personal projects.  So the “normal” range may have been pretty wide to begin with.

So the 17 day “back to normal” recovery time is probably about the best estimate that can be made with this data.  I’m still annoyed for not having tracked this metric for longer.  I had the ability to do so starting approximately in February, but I didn’t.  Oh well.

Now, this does show however that aside from the one peak in August, I’ve never been close to the 33% (8 hours a day) generally recommended sleep level, and I’m not very consistent at all in terms of how much I sleep.  Oh well.  I doubt I’m really all that atypical on that front, although I must admit I would probably enjoy it if I could get and keep my average closer to that 33% level.

Finally, and this is an important point, this is MY recovery time…  but BRANDY was the almost exclusive source of food and was the one that was almost always the one who got up and stayed up nights with Alex when needed.  So HER chart would look vastly different, and her sleep recovery time much longer, if it has even recovered yet.  I can’t show any graphs of that though, as  Brandy won’t let me hook her up to machines to monitor her at night.  I have no idea why. :-)

Revamped Self-Tracking Dashboard

Screen shot 2009-10-26 at 00.15.45

Over the weekend (mostly while holding Alex overnight while he was sleeping and later while sitting with Amy while she did homework) I spent some time reworking a lot of the stuff in my personal dashboard.  It is much better now than it was 24 hours ago.  The main changes are:

  • Switched from showing each chart in three separate time scales to showing each only once, with the default time scale being one year
  • Added the option to easily change the time scale on both the summary view and on the zoomed views of individual graphs
  • Added “spinners” to indicate when a chart is still loading
  • Converted all units to SI Units in cases where those units were not already in use
  • Gave in and made the assumption of standard Earth gravity to convert weight (force) to mass, thus now giving these sorts of measurements in kilograms rather than Newtons.  This may lead to incorrect results if I ever take a weight reading in an area with a strong gravitational anomaly present or while not on Earth.
  • Removed the time scale from each individual chart title as it is now clear from the page headings (and of course the date range on the chart)
  • Reworded many of the chart titles to more clearly explain what they are showing, removing most of the obscure abbreviations and acronyms, although I have left a few in places where I desire to be cryptic
  • Slightly modified the vertical height of the zoomed in graphs to make room for the time scale controls
  • Behind the scenes changed the structure of the PHP to factor out the list of charts, making it easier for me to add, remove or reorder charts in the future
  • Removed several old charts that were no longer being updated or which caused performance problems on the page
  • Added several new charts

Anyway, that is it for now.  Enjoy my Self Quantified Self-Tracking Dashboard Thingymajig.

[Edit 0:39 UTC for minor text corrections.]