Here in scotland, uk, in winter, the interior temp of my house will drop to 16 or 17°C overnight, from its regular temp of 20/21°C during the day when the heati

Here in scotland, uk, in winter, the interior temp of my house will drop to 16 or 17°C overnight, from its regular temp of 20/21°C during the day when the heating is on. Outside temperature range round here is maybe -6°C to 24°C I don't know what standards the RoW uses, but we have a TOG rating here for our duvets ... we have a 4 for summer, and 13 for winter. https://en.wikipedia.org/wiki/Tog_(unit) https://en.wikipedia.org/wiki/Tog_(unit) https://en.wikipedia.org/wiki/Climate_of_Scotland#Temperature https://en.wikipedia.org/wiki/Climate_of_Scotland#Temperatur...