3 year old sleep (or lack there of)

Ke

My 3 year old son stopped napping basically the day after he turned 3 lol.

So he started going to bed around 7 bc he wakes up between 6:15-6:30 every day. That was working completely fine & then out of no where 5 days ago he starts waking up @ 5:45/5:50 every morning 😐. Two of those days he took a nap out of the blue, but then wouldn’t fall asleep til almost 10 those nights & STILL woke @ 5:45am.

So he’s had no naps the last 3 days, bed by 7, still waking @ 5:45. Tonight we are putting him down @ 6:45 bc he acts so tired from waking up early. It feels like such a weirdly early bedtime but I’m not sure what else I can do.

Is anyone else experiencing some sort of sleep regression like this @ this age?? We hadn’t done anything differently at all it just started happening out of the blue this past Sunday morning.

Any suggestions greatly appreciated!!