My baby will be 7 months next week and the last few nights is consistently rolling into her side to sleep, sometimes onto her tummy. I've woken her twice already tonight trying to reposition her to her back. Is it safe to leave her on her side /tummy of she does this herself? Will she wake herself if she squishes her nose and blocks her airway and be able to fix herself? It's making me super anxious and I'm waking constantly checking her