I'd recommend starting out hanging in the back yard or porch for a week straight...see if your aches improve.
If not, no need to go through the work of hammock in the bedroom
If yes, your wife should understand enough to want you not to hurt...(at least mine did) and after that, it is simply of a will and a way (I'd recommend TinaL's suggestion as a great start!)
and one other small thought...I cannot speak for anyones else, but for the first week I hung in the bedroom, all I dreamed about was camping! I kept waking up thinking it was time to pack up! weird