Been trying so hard to help her settle and want her to know there's nothing to be scared of but she gets hysterical when I leave. Had the odd night ok but generally its awful. She kept telling me it was things about her room (were having a few problems b4 he went in) so changed that, tried talking about it, gentle reassurance through to I'm afraid getting cross (please don't judge me, I'm exhausted). Dh seriously ill in hospital and tonight she told me she can't think of anything good when she goes to sleep and it broke my heart. She's as good as gold during the day and I've been trying to work this out so I didn't I traduce a long term sleep problem but I think she needs to know I'm not going to disappear too. What should I do?