I remember getting my boobs done and having to sleep sitting upright and how Valium helped.
You might try Tylenol PM. It is doubtful you will need the Vicodin, as there is very little pain with Rhinoplasty surgery. Also, narcotic pain medication are uppers. They really do not help with sleep. If you are needing more than Tylenol PM, ask you surgeon for a prescription for a mild sleep aid.