I am very paranoid right now, his temperature seems to be around 90 or 92 and the heat pad doesn't really feel like it's that hot. He's in a small tub that seems perfectly fine for him since he's just a baby. But I don't know why I'm really scared about his Temps, they seem to be fine though. Where exactly should the heat pad go? I have it placed on the far side of the tub and im using aspen bedding. The temp at the bottom of the tub is 90 but should that be perfect? Any tips? What are signs of him doing well?