It seems like all of the other characters have problems sleeping. As a nurse, Valentine has a responsibility to help them by any means necessary. Post your tips and/or problems with match ups here, I'll try to be helpful but this is my weakest department. I can give one big tip though. Go to the other character sub-forums and read everything. If you want to know how to beat a character you are going to want to know their tools and their goals. This is something that we weren't able to do when skullheart was down, but now that we have a central hub for character knowledge we need to take advantage of it.