Hey, first time Poster. I'm Aware of the bashing ill probly get but I need all the info I can get.

So I just moved into a Basement recently and am starting to get worried about heat/ Humidity for the upcoming winter months. Unfortanatly on average my tank heat is around 73-75 and humidity 40-60, with using a spray bottle. I'm Using a Flukers 75 watt lamp with a Zoo Med Nightlight 60 watt Heat Bulb and a Zoo Med 8 watt heating pad underneath the tank under his hide. When Night comes his temperature drops to about 68 without the Lamp going. Its just going to get colder and colder as winter approaches and would like to know every possible methods or set ups I can use to fix this. This is only my 2nd snake I have ever owned and just want to make sure everything goes smooth. Thanks.