Morpheus, i overwinter them in a cooler spot with only 6-8 "day-light" hour. I did it for about one month for 2 males and 2 females (both 2 molts from adult). After one month i brought them back to my bugroom with hot temp (90-95F) and longer bright hours, male seems to accept this and moulted twice into adult within a month, female doesn't seem to buy it and i only have a female moulted into subadult recently. So my guess is to "over-winter" them for a longer period of time of about 2-4 months. I still feed them during the overwnter period, but only once/twice a week. There is another thread that i have more details on how i was planning to overwinter them but couldn't find it. With winter time now it shouldn't be too difficult to keep them cooler. Best of luck!