I know I've mentioned this and other things before. I'm guessing most people think it's crazed however I when younger never use to dream and when I didn't I found that I felt on waking not just relaxed, but refreshed.
However over the past seven years (if not longer) I've been misused in some sort of bullshit experiment that involves having radiological interaction constantly with my brain. During the nights the implantation of images generated by radiologically exciting Phosphate's contained within the brains Lipids. Those uninterested in Neurology will state it an impossibility but I find on waking from such sleeps that my memory is effected an that I feel withdrawn (Since the Exciting of Phosphates is obviously using up energy while I'm asleep.)
You might question, "How can people externally generate and view a 'dream' they created?", well there is no simple answer since the production of an image within the mind would have to involve matrixing the brain with radiology on both Passive (Listening for Dopplers without sending out "Echos") and Aggressive (Listening to "Echos" created by manipulated Dopplers) radiological interaction.
I wouldn't suggest long exposure to an artificial dreamstate as the likelihood is that it would potentially commatise you from neurological damage.