Usually it is the mothers who notice those things. I’m impressed, John. Anyway, Elly is being selfish here, putting the newborn in with a sibling. The baby should be in the bedroom with the parents until she is old enough to sleep outside of a crib – around 3-4 years old. Elly shouldn’t expect a 10 year old to wake up at all hours of the night, maybe change diapers and give her milk or stand over the crib to comfort the baby. That’s a mother’s job. It would be ok if it was during the day when she is wide awake and active but overnight? No. Put that crib in YOUR room, Elly. John can handle waking up overnights and share the duties. Better John than Liz.