Was she wild for any part of her life or was she sold by a commercial dealer or a pet store? This is important because if she was wild and then caught and taken into captivity she would have stronger instinctual imprints for many behaviors. One thing to keep in mind with regard to placement in your home is that Toads orient to the rising and setting of the moon and while visual orientation isn't the sole mechanism behind that if you have her in a part of your home where she can see the rising moon that response will be more pronounced. Another factor is that if she was wild before being acquired and your age estimation is at all accurate she may have had at least one hibernation behind her and she would be more anxious to do that thereafter. American Toads actually hibernate below the frostline in colder climates so in those regions that insinct is stronger in the toads. If she's a Fowler's Toad that instinct wil be even stronger as they go into hibernation earlier and stay in longer than the American Toad.

With any specie with such a wide climatological range as those two types of toads as with my Gray Tree Frogs, you can get them to adjust to the winter cycle as if they're residents of a warmer clime for their kind by maintaining the conditions they'd experience in a more southerly region. It doesn't need to be extremely south of where you are just that it be far enough to stimulate a more moderate winter cycle response in them. I've done this successfully with my Gray Tree Frogs giving them a winter season more like they'd experience in the general Appalachian region of Georgia. They've adjusted quite well and have reduced activity and feeding habits but still sleep alot without having to dessicate and be reconstituted in the spring which is a hard and more risky cycle to do with a domesticated Gray Tree Frog. Bottom line is that you can be at ease allowing her to sleep as much as she likes during the winter as long as she never gets cold enough to feel the urge to burrow below the frostline, making sure she has water and food available.