[...],
I remember sending PMs to [...] when his sleep was terrible. He couldn't believe that Z-drugs (Benzos in disguise) could mess up his sleep that much. I am pretty sure that's what most believe on this forum? If doctors only knew the amount of pain and suffering they cause by prescribing Benzos and Z-drugs, they might stop prescribing Benzos and/or Z-drugs? At a minimum they should limit the length of time to 2-4 weeks Maximum!
Sleep returning is very UP and down. You'll do well for several nights or even weeks, but the poor nights always find their way back to you, until sleep evens out for good. That is a completely "normal" pattern.
Good luck going back to work...Siggy gave good advice by saying do as much as you can the [...] before (in case you have a poor [...] of sleep); that way, in the morning, it will be easier to get out of the house.