What else could be making it too cold?
assistant
Are you under a window?  That might be letting in cold air.  Also, make sure your room isn't too hot.  You might need a fan.
assistant
It's too cold to sleep
user
What's wrong with the temperature?
assistant
I'm freezing
user
Is the room too cold?  Are you covered up with blankets?
assistant
Yeah maybe I should pile on the blankets
user