My 12-year-old son won’t get out of bed in the morning

Q. I have a 12-year-old boy who just won’t get up for school. He doesn’t appear to have issues with school, seems to be doing well once he gets there, has lots of friends and so on. The problem is the battle in the morning to get him up. We try to have him in bed for 10pm but that ends up being 11pm some nights because that’s a battle too. The tantrums in the morning are breaking my heart.