Is this churning/growling severe? Or is it normal 'digesting' sounds? And does it always happen, or suddenly happened? What did you feed her?
Wow! that's wired should wake her and if she's hungry again. i feed mine like twice a day and one or two occasions when she's up with me till around ten i heard her stomach growling so i gave her so milk with pieces of bread. Not to over feed her just satisfying her hunger and i then kept her up for a while before going off to bed. Still each dog is different hope its not worms or anything. check the vet to be on the safe side!
My beagles tummy always growls and makes noises. has since she was a pup.