Suggestions

anything helps :) Leon has decided he doesn't want to sleep at night anymore...at least the past 2 nights anyway. He wakes up and decides to stay up for about 3 hours in the middle of the night. He started coughing last night and then had gas from not burping earlier when he ate, so he woke up at 11:30 and was up until 3am. I just don't want him staying up every night because I need sleep for work and so does Skip. He has done so well at sleeping through the night since he was a month old and now he's starting to not want to. You tell him it's bed time and he just laughs at you...but he doesn't understand what you are saying anyway. I just don't know how to get him "tired" enough to go back to sleep. I've tried feeding him, cereal before bed time and everything. Any suggestions. He started on carrots on Friday and was fine then but Saturday and Sunday night he wanted to stay up. He has spit up some carrots/formula though, but it's not like they don't agree with him. He has been more gassy lately too, but who knows. Any suggestions are welcome like I said. I'm just at a loss. I've tried Tylenol thinking maybe he hurts or is uncomfortable somewhere...that doesn't help either.