Cluster feeding

Katie • 24yrs old / Ohio / hairstylist / Samson Joseph due July 20th
My 2 1/2wk old started eating what felt like non-stop for 3hrs. And started again this afternoon. No fever or anything... Anyone experience this and how did you manage? Just feed him until he's done? He will feed and then fall asleep while latched...when I go to take him off he wakes up and looks for my boob again...