Trying to keep an eye on DD's temp as she's had an off day today. It has been ok during the day but I wanted to check it before I go to bed. Unfortunately she sleeps with her hands behind her head, and is in a short sleeved vest with 2.5 tog sleeping bag (so her armpits are completely exposed). I tried the usual armpit method anyway, holding her arm to her side of course, and got 35. As she was sleeping soundly I cleaned the thermometer and popped it gently in her mouth, which gave a much more normal 36.6. It wouldn't have been under her tongue though. Which reading would you go with? Her forehead, neck and chest feel warm, just her arms a little cool.