Sleeping more now that it is cold…during the day!

Why do I have even more trouble with my schedule in the cold? It seems for a couple of weeks now, I have been up all night and sleep all day. If I want it to be opposite, meds are definitly involved. I only take my adderall if I get it before 11, and still my regular 2 benadryl does not always work. Not sure if this is related to the cold, possibly seasonal affective disorder? Whatever, I want to move someplace warm!