Which orchids in YOUR collection get a winter rest?

[Talila6]

hello.
i have a nice sedirea japonica that i purchased in spike. i have repotted it in a japanese pot and in moss. it did well during the summer and grew many leaves and many new roots. i was under the impression that it needed a winter rest in colder temperature. i placed mine under lights in the basement that is about 60 degrees f. i have not watered it for two or three weeks now. The leaves are still nice and green and stiff. the roots have gone white and the moss is dry. once in a while i spray it very lightly as it is near some other plants that i spray regularly. Should i water this plant? i dont want to lose this plant by neglect. it would not be hard to move it to a warmer spot and water it. how long should it be dry?