i got an under tank heater. its an Exo Terra Heatwave Desert Terrarium Substrate Heater. it works really well, but i recently got a therostat. its an Zoo Med ReptiTemp 500R Remote Sensor Thermostat. it seems to work good, but also when then heat pad is set to like 85-90 and i put my hand over the reptile carpet it dont feel hot at all, i mean its a little warm. im just worried its not hot enough for my leo. can they feel the heat fine even tho i cant?