Our master bedroom is considerably warmer than the living/dining/kitchen area of our house, and we've been setting the thermostat quite lower than we'd like in order for the bedroom to get cool enough at night to sleep in. Upon exiting the bedroom in the morning, we've practically got to bundle up due to how cold the rest of the house is.
One suggestion we got was to install a return vent above the door, which we don't want to do because of the loss of privacy. Another suggestion was to install a jump duct in the ceiling inside and outside of the bedroom, which appeals to both my wife and me.
What is the correct way and what are the materials required to install a jump duct so as to maximize air circulation while not leaking any cold air into the attic?