Sadly my daughter after chemo is finding it really hard to sleep. She was given a strong drug x 2 wks to help get back into sleeping mode but now it has finished cannot do so and obviously does not wish to have anything she will become addicted too. Have tried herbal teas, walking, yoga, keep fit avoiding electrical items before going to sleep. Blackened room avoiding noise, listening to radio, no tv, nothing seems to help, not even reading a book. What can you suggest please?