Girls. How did you guys handle babies? It's been almost 5 and a half h…

Girls. How did you guys handle babies? It's been almost 5 and a half hours without sleep. Fed, changed diapers, held him, rocked him, looked at him through the window, entertained him a little bit. Zero effect. Doesn't fall asleep and that's it. Already re-dressed him again. I don't know what else to do with him. He's almost 4 weeks old...