doood, i fell asleep on BART today, and I have a crick in my lower right back as thanks for the nap. and, though there is ‘party’ seating, i avoid it assiduously. trust me, i have selected my preferred seating position only after studied consideration of the relative merits and drawbacks of each individual seat. i sit in one of the two rows at the very center of the train (with my back towards the back of the other center row. this row grants the most headroom, should one decide to rest their head. not really the best thing for your posture or spinal alignment, but better than nothin! and today, i had a very nice sleep, probably about 25 minutes, from about south hayward to west oakland, and some more shut-eye under the bay. but boy, does my back ache now!!! :�