Ideal home temperature

Answer21oC for 'living areas', 18 degrees for the bedroom (see http://www.energysavingtrust.org.uk/Home-improvements-and-products/Heating-and-hot-water/Hot-tips)

However, some people prefer cooler, and there's nothing wrong with that as long as you're not young (infant, child) or infirm, and that you keep active or wrap up warm.