We lowered the crib mattress once. Adam still reached to grab hold and get on his knees.
We lowered the crib mattress a second time. Yesterday he grabbed the top rail and pulled himself to standing. Then slipped and got his legs a little caught between the bars. No worries. I think he is going to get himself into little spots like that a lot and he fusses for about 2 seconds, squirms out, and moves on.
So last night Shannon lowered it another 3".
I swear every time we lower it his arms grow longer!
The biggest challenge at this point is when I lay them in their crib at bedtime and they are asleep, I am on my utmost tip toes and struggle to lay them down flat. Oh, to be short. I don't mind most of the time!