Just want to get some more input of others who get a better nights sleep using a fiberbed on top of a regular mattress.  I recently began using one on my extra firm, flippable OMF new mattress, and love it.  Before I added it, my back ached constantly throughout  the night, and It took a while in the morning to straighten up.  Now, I sleep so well and the bed is very comfortable with the 2 inches of added "softness".  Wondering if anyone else has had success with a fiberbed, or if this is just a tempory "high", love-it-to-death then hate it, type of thing.