When I was in my twenties, I once travelled in South-East Asia. In the hostel in Malaysia there was air conditioning supposed to cool the air, but it brought an awful chemical smell which I coukd not bear. Now tens of years later I wonder if there had been tropical insects gone too near the cooler and caught a cold so awfully much that I have never heard of such, maybe even died of frostbites. In the tropics there of course ought not be so cold. So the animals do mot have the weather skills for such. As far as I know one learns heat regulation from local trees' or maybe also bushes' branches by looking at them, maybe slso walking on such. So I guess it could help to have an old fallen branch from the climate with temperatures between the cooler's near area and the local and next to it further away from the cooler a nice local, or quite similar to local, branch of a climate of both the indoors and outdoors temperatures. Or similarly postcards with pictures of such climates' nature, with nice pictures chosen also based on insects' winter skills etc.
