Nico's new trick: sitting up in crib

When I walked into his room following his morning nap yesterday, this is what I saw...

He has learned how to go from his tummy to sitting up in his crib! So after discovering this, we realized that we needed to lower his crib mattress ASAP.

It was not even 10 minutes after putting him in there for his next bedtime, that we glanced at the monitor and he was standing up. What a close call!