Up All Night

So the past few nights Dakota has been very good with sleeping at night. I feed him around midnight and then he sleeps about 4 hours until the next feeding. So I get a little sleep before doing it all over again. I thought we had a good thing going. But he had his own plans last night. Last night I feed him @ 11pm and then tried to put him down, but he kept me up until his next feeding around 1am. But then he still didn't go to sleep until around 2:45am. So I finally got to sleep. But he had stayed awake from 8pm to when he finally went to sleep. This was the first time he had kept me up at night like that, and I know it won't be the last.