I have been waking up in the middle of the night for the past 5 days with agonising back pain… I would wake up around 5am and have to guzzle ibuprofen and jam a pillow under my back to get back to sleep. When I went to flip the mattress (which I assumed was to blame). I discovered my 5 Cell maglite laying on the slats right across where my spine lays…. ahhh….