I am having a sleep dilemma! For the past week or two both my 3 year old and 1 year old have been waking between 4-6am! They go to bed at normal times but they are waking up way too early. My one year old wakes several times at night when before these past two weeks he would sleep through the night no problem. And now my 3 year old (still co-sleeping, we are working on getting him into his own bed) wakes within minutes of me getting out of bed in the morning.

How can I fix this?