I'm paranoid about my DS overheating in the night. He had his jabs today and now has a fever, at 7pm I gave him something to bring his fever down from 38.6… it's now 38.2 and he's about to go to bed. Usually he wears a long-sleeved body, a long-sleeved onesie and a sleeping bag; our room is 19 degrees but usually drops below 18 overnight. Should I be dressing him in less tonight? We don't have anything with short sleeves that fits him right now.