C.F.
This probably sounds terrible, but my 5 year old daughter went through a similar phase when she was 3. We introduced the sleep fairy to her. The sleep fairy would pop in her room every morning before she woke up and leave a present under her pillow if she slept through the night in her room with no accidents. Nothing major, chapstick, stickers, a ring...just silly cheap stuff that made her happy each morning. It made her think twice before crying and getting out of bed to stall :)