[eumenides1]

Not just sleep temp (wife is also of the less covers camp), but mattress firmness. My wife likes ultra firm by European standards. So she has the Chinese sea horse brand mattress. I'm a bag of bones, so the mattress literally pushes my spine to pinch nerves. Our solution is a king size mattress with twin covers, and one side has a twin memory foam. We sleep happy and together.

Cultural aside: mattress firmness. It will blow your mind how firm some seahorse mattresses get. One Caucasian friend commented after one night that they would have probably been better off probably on our broadloom carpet floor.