I agree with others about the monitor. I also have an audiomonitor for when we are up, but switch it off when I go to bed. I refused to buy a video-monitor because I knew I would become obsessed about A times and how long it would take to go to sleep... So I decided to count the A from the moment I heard him up to the moment I put him down without any callback. I was not precise for sure, and sometimes he was possibly more OT than I thought (but as Creations said, UT is much worse than OT, IME), but it worked in the end, and saved my mind...