Nightmares/ghosts

DD for the last year has been able to "see" people we had a big episode were she was scared to sleep in her room incase this little girl came back. We managed to chat to her about it and tell her it was fine she just wanted to talk and nothing was going to hurt her, if she didnt want to talk to this little girl to tell her to come back later when she wasnt sleeping. We saged her room and all was good for awhile.

Now we seem to be back to being scared of sleeping in her bed again, we have asked what the problem is and it seems monsters this time which is to be expected shes 3.5 but she is also worried about us dying and her dying. We have a dream catcher in her room above her bed and a cute little fairy as well thats to keep her safe we even have a night light in her room. I know they go through a stage of relising what death is i just didnt think it would be so soon :/

So my long winded question is.... how to I encourage her to sleep in her room and not be scared? I dont mind her sleeping in our bed...but she doesnt sleep she will just chat for hours! Its been going on for the last 2 weeks and DS doesnt even come close to sleeping through either, im finding it hard to help her out when im soo tired and im getting angry at her.