Is my hamster a really deep sleeper or is she dead?

At any of these times that you touched her was she really stiff? Is her body cool? Signs of death are stiffness and loss of body temp.... but stiffness will go away after 12hrs or so. If she's still soft and warm she may be hibernating but otherwise she's probably not alive. I think if you've done all that to her and she never even budged she's probably not alive, sorry =(