M.S.
My girls went through a scared stage too. We used two strategies that worked: the "Night Fairy," who is the cousin of the Tooth Fairy, would come and leave a small gift for them if they spent the entire night in their bed. Her job is to help little boys and girls learn to sleep alone. The gifts were small - a piece of candy, stickers, goody bag type stuff, but sometimes they were bigger. This went on for 2 months. We also give the girls hot water bottles at night - there are adorable ones online for kids - and it's instant comfort when going to bed. They hug them and fall right to sleep. Good luck!