I haven't noticed any difference in my sleeping lately and am on Copaxone ( over 9 years now). When I'm not woken by outside sources I sleep well and 8 hours or so. Not that I go to bed at a decent hour. That part I think may be an MS thing. I'm not sure, but see that lots of others with MS stay up real late too.
I hope you get some good sleep soon,Dej. I know how that can wear on a body, especially with MS.