Hi Leora
My daughter has slept with the crib bumper cluthched in her hand since she was about 5 months old and able to roll over. I'm not sure if you're concern is her contact with the bumper while going to sleep or if she's climbing on the bumper to gain height? If she's climbing on it, you might want to remove it so she doesn't topple out. If she's moving near it she is probably ok since she can roll, sit, and stand. I feel like once they can move away from it they are safe from any danger that might have been present when they were more immobile. Just my thoughts, if you are very concerned talk to the peds to see what their advice is.