I've noticed over the past couple years and especially more recently, that sometimes I will continue to work on some challenge (coding/design project, school work, etc...) even while sleeping.
Quite frequently I awake only to remember bits and pieces.
Rarely can I remember the solution long enough to write it down and implement it the next day. When I have been able to, I was surprised to find out that it actually made sense. After watching this video, it seems to make more sense.
Perhaps their is a way to harness the power of our minds in a creative/productive way while we are in a seemingly useless/unproductive state. Only our loving creator knows for sure what our minds are capable of.