Correction: mom refuses to swaddle because he squirms so much the blanket somehow ends up wrapped around his head.
When Aeryn was a baby and I studied sleep training methods I learned that "technically" sleeping through the night is defined as 6 straight hours. By those standards Tate has been doing this off and on for a while, but since as parents we tend to define "sleeping through the night" as how it impacts our own sleep habits, I can say it's unofficially official now that he goes 8 hours between feedings and I am able to sleep undisturbed between 10 and 5 (though I don't really make it to bed at 10).
Isn't it amazing how significant the little things are? It's so much easier to enjoy life with a baby when you consistently get some sleep.