I'm new to running (started in March) so this thread is useful information for me as I was wondering the same. I have a Karrimor running kit, including a hat of the same brand, which include fluorescent and reflective blocks for night running. They all have the sweat wicking technology too.
My winter schedule plan so far, is to do a daytime run over the weekend (I have children so bicycles and safe space need to be planned ahead) and two after dark (between 5-7pm) runs along a 3.5 mile circuit of main roads near home. I'll see how I feel when the weather turns and driving rain is lashing my face.