19 Month Old Wakes At 4:00AM!

Hey everyone, I'm looking for some feedback on my son's sleeping habits. He's 19 months old and wakes up every morning between 4:00 and 4:30. Here's the full story:1 nap at 11:00AM that's usually between 1 and two hours longbedtime routine starts at 7:30pm when we turn off TV/put away toys and go to the showerstay in the shower for about 15 minutesdry off, change into PJs, turn on white noise, sit down in the rocking chair with a bottle till about 8:00pm when I have him put his bottle in the fridge and turn off the lights. I put him in the crib tired but awake and he immediately gets comfortable. He doesn't complain or have any problems falling asleep on his ownhe wakes up screaming and crying at 4:00-4:30 and will not stop until we pick him up out of the crib. He's usually chatty and happy at this point and wants to play with toys or watch TV. I've tried rocking him in the chair or bringing him in bed with us but he squirms and tries to get down to go play within 15-20 minutes.We're doing all the usual stuff like keeping bedtime consistent, using white noise, room darkening curtains, and making sure it's not too hot or too cold.The latest he's ever slept was 6:30 one day, but I think it's because he was sick. Otherwise he's always been an early riser, and we used to have a lot of problems getting him to go to sleep on his own and waking up in the middle of the night.Anyone have any suggestions on what we can try? I'm kinda worried because he's only getting 8 hours of sleep a night plus an hour nap. via /r/Parenting https://ift.tt/2UtKxKS