This was the mid 90's. It revolved around a group of scientists who had the technology to enter a sleeping person's mind. When interacting in the sleeper's dreams they solved mysteries or helped the sleeper resolve issues the dreams were about - the first episode was about a Gulf War veteran and (I think, it's been a while) his short-lived twin brother, at the end of the episode he signed on with the scientists.
I do recall the leader of the group had a wife in a coma, he intended to find a way to bring her out of it but the series folded before that could happen.