So currently I have the hydrofarm cheapo thermostat. I'm about to achieve a 90f hotspot with it set to about 105f. my question is is seems to take very long to get it from 95-105 (on the thermostat) when the temperature drops at night the thermostat reading with drop within an hr from 103 to 93-94 and 3-4 hr later it would still be at around 96. I would have to leave it over night than it would hit 103 or above. But by than its morning and the ambiant temperature has risen alot already.

I'm trying to figure out if this is due to my low ambient temperature or would the heat tape heat up faster if i have a better thermostat unit say a herpstat or something.