How to use Sloth and Torpor as an object for meditation The Satipatthana Sutta details the use of the sloth and torpor hindrance as an object for mindfulness meditation. Does anyone have any practical advice, either of a personal nature or from an established teacher, about how this might be achieved. Whenever I am suffering from this hindrance it completely negates any attempt at meditation of any sort. So I am interested about advice how tiredness could be used as grist for the meditation mill.
It is an experience, like any other, so you have to face it and recognize it clearly as it is. In our tradition we describe the experience of catching up the fatigue in one's awareness and reminding oneself "tired, tired"; if one's mindfulness is sharp, it will either disappear completely or, if the body needs sleep, one will fall asleep.

As the Mahasi Sayadaw describes this process:


  Make a mental note of drowsy, when drowsy, and sleepy, when sleepy.
  After you have gained sufficient concentration in contemplating you
  will be able to overcome drowsiness and sleepiness and feel refreshed
  as a result. Take up again the usual contemplation of the basic
  object. Suppose you are unable to overcome a drowsy feeling, you must
  then continue to contemplate until you fall asleep.
  
  http://www.budsas.org/ebud/ebmed041.htm


Also, the commentary to the Satipatthana sutta has a number of ancillary techniques for overcoming sloth and torpor:

http://www.accesstoinsight.org/lib/authors/soma/wayof.html#sloth