Badger, it's quite normal to fall asleep when starting a meditation practice, especially the body scan. Keep at it and your body will get used to the relaxation mode without falling asleep. Unless you are using this to fall asleep... I didn't read back in the thread. I always tell my clients using these kinds of things are sort of like giving yourself an innoculation against anxiety; if you practice every day, it lowers your overall level of cortisol, noriepinephrine, etc. so you are less apt to get a huge surge of these stress hormones when you are in the moment of a stressful situation, thus decreasing the icky physical symptoms of anxiety like tingling, heart palps, and so on. But you can also use some of these things in the moment, particularly, some quick progressive muscle relaxation (tense and release) that you can even do in public if needed.