This patient support community is for discussions relating to the challenges of parenting toddlers (age 1-5), including physical, speech, sensory, cognitive and emotional development, choosing a daycare/nanny, games & activities, and toilet training.
Summerlion had lots of good suggestions.
Having a parent pass away, a 2 year old probably can't understand. Adults have trouble understanding it, have trouble grieving, why wouldn't a 2 year old? She might be afraid that you are goign to die at some point and leave her too. Moving is also another hard thing for a toddler to grasp. I totally wouldn't know what to advise. As I say on other responses, that I'm starting to sound like a broken record, seek professional advise? I don't know if there are counselors for 2 year olds, but a pediatrician would know that. If you are seeing an adult counselor, maybe he/she could advise you as well. I think you wrote that the problem started 6 months ago, and your husband passed away 4 months ago. But, even if the problem existed beforehand, I'm sure having her daddy gone does not help the situation in getting passed it sooner. My daughter had sleep problems, and I asked her pediatrician. You don't even need to go in for a visit, you can call the doctor's office and leave a message for the doctor with a nurse and have the doctor get back to you, and then if the doctor needs you to come in you can schedule a visit. My daughter's doctor had photocopied some pages out of various books for me and mailed it to my house, and the pages were based on what I had told her was goign on. She also had the nurse give me some advise over the phone. I am sure your pediatrician can recommend books to read, what to tell her, how to correct the sleep behaviors, etc.
I'd be tempted to just let her sleep with me, if I was in your shoes, but I know you are supposed to get kids back to normal as quick as possible so that probably isnt' right.