Oh ya, my baby is terrible for being quiet. I'll feel movement for a while and be really confident then it will slow down, I won't think anything of it then realize later it has been hours since I last felt something, then I worry. I read babies at this stage should have a sleep/wake pattern, but I haven't been able to identify that yet. I don't think I would worry if I knew baby was always quiet from 2-6 (or whatever). A soother thermometer? So a thermometer that is also a soother? That does sound genius!