If you can leaves those babies with a caregiver, but if not try to think of how to get around croweded stores and carry your items. At our walmart you can't use a cart. I didn't take my girls until they were about 10 and then they stayed in groups. We were constantly in contact. Since "Black Friday" starts around 6pm and I was finished by 8PM last year I don't think the bedtime is an issue. People need to use their best judgement for where they need to go and what they are purchasing.