Is the health advisor there when he's sleeping? If not, then what the hell does that person know? Cold outside air is good if they have croup, but he doesn't, right?

My kids always sleep in my bed when they're sick. They need as much comfort as they can get and I need as much sleep as I can get. Some people don't sleep well if they can hear the baby breathe or whatever, others vice versa, and the same for babies.

You are the one who knows your baby. If he has problems, you will get outside help. But if people are trying to solve problems he doesn't have or somehow perfect him, I suggest smiling whilst thinking of them as crazy yet harmless. You (and you husband) are the authority on your baby.