Sleep

For the past month I have been sleeping very poorly.  Either I can't get to sleep, or I keep waking up multiple times in the middle of the night, or I sleep forever (12+ hours) but don't feel rested at all.  There were several days where I just didn't sleep because I couldn't.  I'm hoping that my problems were caused by too soft of a mattress and sleeping in an unfamiliar location.  I'm finally back at home now and in my own bed and last night I fell asleep practically as soon as my head hit the pillow and I stayed that way for 12 hours and woke up feeling completely rested.