Cold enough?

I have personally been rather happy with our room temperature.
I don't mind having less than 20 degrees. On the contrary - people tend to sleep lot better with a little colder room air. And I know how to add more clothing.

But now, all is to be changed

Some Smart Magic, now please.

As our little princess is soon to leave the hospital, I would love to have a little less freezing temperatures inside our apartment.

I need to figure out something.