What about overnight...are you running lights to maintain the heat? (not a good idea, messes with day/night cycles) Or turning it off at night, so the temperatures fall??? If using a light for heat, it's better to use
a CHE, or red or black incandescent bulb (so there's minimal illumination). But for safety reasons (BPs are probably the most commonly burned snakes in the pet realm, because they need warmth & owners fail to
properly regulate it) anything used to heat the enclosure (including your light) should be regulated with a thermostat, & checked with an accurate heat gun.