Ok so the angry outbursts out of the way first. The health board switched my tablet from XR to immediate release to save money because of cuts. I of course requested for it to be switched back because I don't just need it to fall asleep. It's an all rounder for my mood during the day too. I felt as if I was experiencing with drawal every single day as my tablet was wearing off. I also find it works better taken at night as one dose. Splitting it up as part at night and part in the morning is like flogging a dead horse. The XR is best for my bi-polar one. For sleep immediate release I can see the method but not for other disorders. I need a steady stream so the XR is not just miles better, the immediate release did not work for me at all.