Being a heavy guy, I ordered the firm choice, and it turned out to be a great choice. It does sleep a little warm, but not as much as I thought., This is easily the most comfortable bed I have ever owned, and I am sleeping better than I probably ever have. I don't wake up 5-6 times a night to turn anymore, either. My cat thinks I bought it for him, and he's on it more than, I am! Overstock also got it here in record time. I used the free shipping, ordering on late Saturday night,. It arrived on Tuesday! As wonderful as this bed is, the price is unbelievable. I would definitely recommend this...and you guys that are heavy...around 300lbs...the firm is a good choice.