Two good friends of mine have a 4 year-old daughter who refuses to go to sleep each night. She cries and screams because she doesn't want to be left alone in her room. This goes on for about 4 hours each night, and it's been happening for 6 weeks now. They also have a 2 year-old, and this behaviour is also disturbing her sleep patterns. Has anyone experienced this before, or do you have any advice about how to handle this situation? It's really starting to take its toll on the family. Thanks in advance for sharing your experience or advice. -Rob