If you're like me you like to be warm when you are hanging out around the house, but when you sleep, that's an entirely different story. To ensure a good night's sleep, try and keep the temperature (in your bedroom at least) around 65-70 degrees Fahrenheit.
Sleeping in lower temperatures should mean a better night's sleep.
Fit's Tip: Try not to load up on the blankets either. Think about all of the times you have woken up and thrown the blankets off of you -- it definitely does not make for a peaceful night's sleep.