I'm thinking an oil heater would also be ok. Ours has a timer on it so you could set it go be on while she is usually fast asleep so the room is warm when she wakes and then have it switch off when she usually wakes up. I imagine it is hard to know when she will wake up though. With ours you can also make it not as hot so it would be ok if she did touch it. The timer is also good because it can go on and off as much as you want keeping the power bill down.