DD, 11 months, was a tricky customer sleep-wise in her early months. With the aid of a routine, plus the intervention of white noise, we have got to the point now where she sleeps (mostly) well at night, plus 2 short naps in the day (she's sick or teething or something at the moment, so that's actually not currently true).
The white noise usually stays on for the duration of her naps (about 30-40 mins) and is used to put her to sleep of an evening. It goes off (hallelujah for i-pods) after about 40 mins and usually she stays asleep until morning.
My question is, when and how do we get rid of it? Cold turkey, gradual cutting down? Reduce volume?