For our bed, we decided to make a sliding bed rather than one that lifts up due to the discomfort of having a bed above your head.
Here is our SolidWorks assembly:
Here is our animation of how the bed operates:
http://www.youtube.com/watch?v=DbBFSVXolnE&list=HL1333128990&feature=mh_lolz
Bill of Materials: