College-age son only wakes up in the afternoon

DEAR HARRIETTE: My son is home from school for a month, and all he does is sleep. I know that college was tough for him, but I do not like what he's doing now. At first, I let him sleep to regain energy. But now it has been a couple of weeks, and he still doesn't get up until after 1 p.m. That doesn't work in our house, and he knows it, which is why I'm concerned. I don't want to yell at him, but …