Hi, can someone please tell me how long my 17 week old baby should be awake for? I've been told 1.5 hours but I've read other posts on here and some babies that are only 1 month older are staying up 2-4 hours? His tired signs are very, very hard to see because he's very alert and hyper most of the time and he just gets more excited the more tired he gets. I currently try to get sleep started after 1.5 hours. Is this right for his age? (we are in Day 1 of trying to start the p/u, pd technique and it's not going well so far so I just want to make sure I have the wake time right?!) thanks