they didnt actually call it controlled crying.
what i was instructed to do was put tahlia in her cot without wrapping and walk out. If she just grizzles and cries (but not really cry) leave her. If the crying gets really loud, wait 1 minute and walk in and pat her till she is calm, and then walk out. You then have to keep repeating this process until she stops crying, increasing the intervals you leave her for.

Is this considered controlled crying? It absolutely broke my heart to hear her cry like that (I've only heard her cry like that once before when she had needles) and I also ended up in tears.