My DD is 8 months and is starting to show signs of trying to pull herself up to standing during the day. This has got me thinking - will she still be ok in a GroBag once she can pull herself up? I've tried standing in a sleeping bag, it's not easy! I was wondering if I'm going to end up with a new world of night wakeups caused by a baby head butting the side of the cot as she attempts to stand in a bag? She travels around the cot at night a lot though, so if I'll have to stop using the bags I'll really struggle to keep a sheet or blanket on her.