I usually sit in bed with the laptop on my lap, but after a couple of hours it gets a little hot. I would like to buy a cooler pad that's powerful and gets the hot air out, so that would be getting it through sides, not bottom. The big exhaust is the one from the top, the little one, but all those parts get hot after a while. What suggestion can you give for these specs. It's a 15.6". Cheers.