I A wide range of Nepenthes can handle a wide range of temperatures. I have good results growing a variety of highland to lowland plants in intermediate temperatures.
I use SensorPush sensors to monitor and conditions because otherwise it’s hard to know exactly what’s going on. With this I can see that my kitchen.
I’ve found that plants tend to adapt poorly and will show ill effect quickly for temps too far outside their range. Some respond by stopping growth and pick back up just fine when it’s favorable again. However a few of the most finicky species will slowly decline until they come into range, and die if they don’t improve soon enough.
Definitely the most likely to kill plants is extreme heat. Some can handle temps >100F (38C) without issues, but sensitive highland plants (eg hamata, heliamphora) will have issues and suffer damage when temps are > 90-95F (32-35C)
For night drop i’ve found most species tolerant of only dropping to 65-70F (18-21C) which is the warmest it is for me naturally in the house. However I’ve tried growing N. aristoloiciodes and N. sp. nov. Papua New Guinea which both promptly decline and eventually died when temps were >60F (16C).