Window treatments, hoya serpens, and cold weather...

I have had to bring in most of the hoyas except a couple so they are filling my house and windows.  Who really needs window treatments when you have hoyas?  I have left hoya serpens and hoya carnosa variegated outside and they love it, especially serpens.  Hoya serpens has grown so many little leaves since it cooled down.  When I first received it, some of the vines died back and the peduncle fell off but you can't tell now.