Trying to breast feed my newborn. He has taken some but is sleepy and hard to wake to open wide enough to latch on. I know he needs fed every couple of hours to stimulate milk and for him to get hang of it. Memories of same thing happening with DS1 and he got the hang eventually. Just want another wet nappy to reassure that he's getting enough. When to worry and any tips for getting him to open wide? Thank you.