Your .zip is making both Windows Explorer and WinRAR throw up. WinRAR's log is posted below. I've tried re-downloading with different browsers, saving to desktop and opening directly from the link. No go. I'm out of ideas (that didn't take long).
! C:\Users\infamy\Desktop\socialisedenergy.zip: Unknown method in betterenergygainnofreepretties.package
! C:\Users\infamy\Desktop\socialisedenergy.zip: Unknown method in RTFM.txt
! C:\Users\infamy\Desktop\socialisedenergy.zip: No files to extract
However, I'm excited about trying it out. It's an interesting take on the original bed issue. I like nightie's in that it allows my well-off Sims to have different beds, rather than the SAME BED in every room. However, the notion of keeping the moodlets but fixing the sleep length is a great one for up-and-coming Sims.