My 9 month old has always slept in a Grobag just as my older daughter does. But she's a really active sleeper and gets it all twisted around her and then it wakes her as she's restricted. So I'd like to try blankets instead. But as I've always used bags I've no idea where to start with using a blanket. Do I just tuck it in at the bottom of the bed and hope for the best? Or do I not need to do that now she's older. Those who successful use blankets, what's your setup?