 That would give you your most accurate temperature before you drank anything, before you brushed your teeth, before you did anything. You wake up, open your eyes, put a thermometer in your mouth, pull it out, read it, write it down. That was your real temperature. Except for what? It's not your real temperature. It's still one temperature. It's subject to a zillion different things that make it go up and down. No, no, no, no. It's a way better way to do this. What you do is you take your temperature three times a day for three days or a week.