Sleep help!

Dominique • Myles John 3/8/16. Micah Robert 6/29/17 baby girl due 10/8/20

My 1 yr old is up for 1-3 hrs almost every night always up around mid night. It started around 9ish months and then I stopped going in and feeding him. After a few weeks he stopped being up for so long and would just whine for a few mins then back to bed. Didn’t last long and now we are back at being up 5/6 days a week from 12-2/3am!!

He doesn’t normally cry he’s just up playing, walking around, talking and whining. I don’t normally go in there unless he’s crying. He is getting his molars in but that’s only been going on for the last month. I just got a bigger size nighttime diaper to see if his diaper is getting too full.

Any suggestions I feel like I have tried everything!!