Yes mate for the mo I'm usein sleeping mat for camping and its proper helped. I no way ur sayin about the hot spots. The growroom has been built from plasterboard. So its a trangel airtight room my pal who's space it is. Is a builder and he built it and my temps are cool I can maintain 25 both day and night. And I no this as the lst grow I did in the same room ( sweet cheese auto ) finished end ov august and I cud maintain 25 and I used 850 way hid. Well I'm off to get the stuff u said before my pals wife kills me for keeping her awake... lmao