She has an underlying problem; ask your GP to refer her for counselling. And question your own motives: the aim of the game is not her getting back to sleep to suit you, but for her to be happy and no longer beleaguered by nightmares. If she has a nightmare, cuddle her for as long as it takes and then her in bed after she's asleep - if indeed she can't finish the night sleeping with you. Incidentally, fires and bumble-bees have one thing in common - they can inflict a sharp and sudden shock. She must have experienced a sharp and sudden shock in her life, and this needs to be looked into.