OMG, I would be staying in a hotel.I couldn't sleep if it were 70.  But hells bells 78 would kill me.When we have company, they always ask me what kind mattress we have.  They all say they get the best nights sleep ever here.It has nothing to do with the 20 year old mattress, we do have a tempurpedic topper on it, and it is comfy. They sleep so well because the house if freaking cold.  They snuggle under the nice comforter and are a out like a light.Both my boys were somewhat asthmatic growing up, so we always had to keep it cooler for them.  In the winter we will turn on the heat downstairs, but they can't sleep if the heat is on upstairs. Â
@FallonWe don't run the upstairs heat in winter either. The air from the downstairs unit rises and takes care of both floors. 4951