This is one of my favorite Twilight Zone (2002) episodes. In fact this was the 1st one I watched on TV in syndication and it prompted me to watch more of this series and buy the complete season 1 DVD set. This episode features one of my all-time favorite actors Lou Diamond Phillips. Interestingly, his character in this episode is named "Richie." The same name of his character in one of his most famous movie roles in "La Bamba."
In this episode you are kept guessing right up until the very end. Each time Richie awakes it seems he finally is awake and no longer dreaming, but each time we realize he is still simply in another dream. And this episode has much more of the technology element that I like in my Sci Fi.