I don't see it as cruel, TSAP. I have always had insomnia, and one of the things I picked up from various treatments for it over the years is to make your bedroom exclusively for bedtime activities. For example, if you use your bed to work, watch TV, eat, read, etc., your brain does not associate it w/going to sleep, and this alone actually makes it harder for you to fall asleep in the bed.
So her bedroom is just that - a bedroom with a soothing lamp, books and bed.