From what I have read in books, babies should wear what you wear. It's only as a newborn that they cannot regulate their own body temperature.

I definitely would not triple the clothing!

So I dress Cooper how I am dressed. ATM he just wears a tshirt and pair of shorts. Or if his room feels really hot I take all his clothes off and just leave him in his nappy for his nap (even though I'm still wearing my clothes - but I may be sitting in the a/c in the lounge). But he doesn't have a/c in his room - just a ceiling fan.