No pees in the diaper last night!
Not to burst your bubble or anything, but our DS (3.5 months) did the same thing a few weeks ago. I thought to myself..."Finally, we did it! I can pee him during the night and save on diapers!". That ended up being the only night it worked . I hope your little one continues his dry night streak!
After just doing it for a few days now (finally worked up my courage to try it), I think night peeing is more successful than daytime. At least the timing is totally up to Hanae!
FWIW, Our babe is 3 months and her morning diaper has been dry about 75% of the time since... 7 or 8 weeks maybe? (We started EC at 4.5 weeks.) I have heard they may regress here and there, but for now, it's nice! (Especially since she sleeps from 6-9 hours during that first sleep.)
It's so cool to see the communication "working"-- that is, I believe they learn they will get a pottytunity on waking, so their bodies adjust and "hold it."