I have heard of women who pride themselves on being "night people." That means they have trouble getting up in the mornings because they come alive at night. They may stay up to all hours reading, watching television or pursing some sort of interest. The next morning they are too tired to get up and care for the family....
These women are not "night people." They are lazy and selfish. Who would not rather stay up late and do whatever they pleased and sleep late the next day?
Once a young wife begins getting up earlier than her children and her husband, she will cease to be a "night person." She will be tired at night and go to bed at a reasonable hour so she will be there to serve her family the next morning.
So what time should we go to sleep or wake up each day? That can be determined by knowing how much sleep we need to pursue daily communion with God, care for our husbands and children, and manage the duties of our home. This is applying self-control as it relates to sleep.
Now I must add an addendum for all moms with young children who wake up in the middle of the night. For you, sleep may feel like a lost commodity. However, I can assure you, your children will grow, and eventually you will be able to return to normal sleeping patterns. In the meantime, try to get what sleep you can.