Yes, bring you jumpers or better still lots of thin layers of clothing. If you could fit an electric blanket in your case I would definitely recommend one.Not only will it warm the bed for you to get into, it stops the bedding feeling so damp if there is little heating or no dehumidifier in the room. Mine doesn't leave the bed till late April.
We were talking about the cold here in Corfu last night, one girl was wearing three jumpers and jogging trousers to go to bed in to keep warm. Thermal Sherpa Tensing hats are all the rage for nightware at the moment, as the cold on your forehead gives you a raging headache!