Hey Serenity, welcome! Many of us who grow dends don't do anything special to give it a "winter rest"...if your plant wants that, it will probably rest on its own - it doesn't require that you should move it or anything, as the plants would not move in nature during this time. Some of them are deciduous, which means that they lose their leaves when their rest period comes, but don't be alarmed - this is totally normal and a good thing for them to do...it rejuvinates them when it comes time for them to grow again (allbeit can be a bit unsightly)...

About watering...since you are keeping your plant in a SE window, it will probably not really "rest" as much as some would in nature, because the light levels are going to keep photosynthesis going....so I'd say, like Cinidras said, water 1x per week by soaking and you should be good to go

Does your dend have a tag? Tell us the name, that way we can dig around and find out some more info on your particular plant.

Oh, and btw, lots of growers are having sales now at the end of the summer.......so...your collection will probably grow. Its best not to fight the inevitable....besides, its fun!! And we are always here to help