I am in shock (sleep related)

When I am home with dd, I am lucky if she sleeps for 1.5 - 2 hours during the day (she takes one nap a day)

Well, Dh is home with her today and she just woke up from a 4, yes 4 HOUR nap I am literally in shock, I cannot believe she slept for so long. She is getting over an ear infection and is doped up on amoxicillan, decongestant and motrin

I hope she can go to sleep tonight after that marathon nap