infra red bulbs never bothered my animals. my ig, turtles, and my monitors all had infrared bulbs. it was by their everyday basking spot so they could go to it to warm up at night if they wanted too. i had hides for them to get away from the heat if they wanted to also. it is my understanding that the blue and infra red lights arent seen by reptiles so the light that we see the bulbs giving off wouldnt bother them anyways. if your animals were restless at night, then something else was wrong. go through the monitor forum on kingsnake. read some of frs post. i think in the last month this question was asked. hes been breeding and raising monitors for yrs.....hes had some monitors that had lights on 24/7 for yrs at a time and it never affected their growth or overall health. and those were daytime lights!!!!
just each one Ive bought hase burned out after like 3 uses