Emergency Crib Lowering

A few weeks ago we thought it might be time to lower the cribs because at some point, they might stand up. We didn't really get how low, low was. When we heard laughing and came in to find this...we realized LOW meant the head does not pop up over the crib as such. Cribs are now lowered and the twins pull themselves up but we have no fear they are going to lean over and fall out!