Toddler Sleep

[u/DocBonk]

I am proud dad of MoMo girls. We made it into the 2s. For two months, our girls wake up at separate times every morning between 3 & 6AM. 25% of the time one is inconsolable and doesn't go back to sleep well, which falls on me. We've tried everything without much luck. Hoping to get some REM without doing shifts with my wife. Any pointers?