Is it more energy efficient to heat your house up and let it cool down or maintain a constant temperature?

Is it more energy efficient to heat your house up and let it cool down or maintain a constant temperature?
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So if I understand correctly, the options are 10–17-14–17-10 versus 14–17-14–17-14. I think what you are doing is more efficient. It will cost energy to maintain 14C versus 10C over the course of the night. It takes more energy to get from 10 to 17 than 14 to 17, but this amount of energy I imagine is much less than what you would spend maintaining 14 rather than 10 C all night.
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