If you have a CI, and are planning on purchasing a new bedframe, you may want to stay away from iron and metal frames. (In the picture, see the gray round thing a few inches from my ear?)
You could be sitting up in bed talking with your spouse, and all of a sudden they think you're lookin' mighty sexy. You respond with a certain look that confirms you're on the same page. Then *zap* - your magnet has left your head and onto the bedframe, taking away your 'oh baby' moment!
The minute your CI magnet leaves your head, you're back to living in sudden silence --> a rude awakening.
My magnet has left my head when getting out of my car, and *zapped* to the car door; it's left when standing near a garage door, and *zapped* entirely from my head and continued to ascend with the roll-up door!
In short, there are some places that your magnet and processor will immediately leave your head to go to another source, and there's nothing you can do about it --> but, think twice when purchasing bedroom furniture ;-)