My mom is 81 and has had dementia for 4-5 years. She lives with me and began having hallucinations really bad to the point it would keep her up all night. We got her on Seroquel and this did take away the hallucinations and she was sleeping through the night. There was a mix up with her prescription and she was off the Seroquel for about 2 weeks. When I finally received it, I started her back on it. When she was off of it she was brighter, happier and for the first week and a half she was still sleeping through the night. The first night I put her back on it she was dead to the world when sleeping. it made a big difference in her. So I haven't given her anymore as of now. Does anyone have experience with giving Benadryl at night instead and would this help her to sleep thus keeping the hallucinations away? I just don't want her to be on any more medicine than she has to.