first of all she needs a specialist councillor who specialises in Post Traumatic stress disorder who specialises in ptsd. secondly if she is not use to wearing protection at night for bedwetting then suggesting wearing nappiesshe may feel you are a bit weird you need to explain the pros and cons of her wetting the bed tell her its not her fault it is what she has gone through personally i would suggest putting a plastic sheet on the bed suggesting that she wear a nappy and plastic pants to bed may send alarm bells to her and make her think what am i let myself in for here! if you are going down the nappies route then you need to be very careful in the way you approach the situation and choose your words carefully as remember although you have taken her in she is not your child she is some one elses ! I do commend you on taking her in though in order to take her away from the beatings how everthe father should be brought to book on this abuse! hope this is of help .