Well, you may regret it, because if you get too toasty under your duvet you could wake up with stiff muscles.How so? Doesn't heat relax muscles? "If you start to perspire, you could push the bed ...

If there are some mega stains on the pillow, soak it in a bathtub filled with soapy water. Then, drain the water and refill it with fresh, clean water to get the soap out before setting it out to dry.