After your first child has 6 hearts, in the morning you'll discover that you're not feeling very well. Your oldest child will be worried that you don't seem to be healthy, and your spouse will tell him/her that you just need to rest for the day. The child decides that you will just need someone to nurse you back to health, and that's what he/she will do for the rest of the day.
The event ends at 8:00 pm in the evening, when you finally get a chance to get out of bed.