Broken Nose in 3… 2… 1…
This is one of the most uncomfortable sleeping positions ever captured on camera. The reason for this is that she’s using her nose to bear the weight of her head. Imagine what would happen if the train suddenly came to a halt. What if your nose were to bear the weight of not just your head but your entire body?

The OP claims they enjoy riding the bus and subway. The fact that the OP was able to take photos of people while they were asleep and without their permission is probably why they do this. Although it’s amusing, at least for the people involved, it’s also painful.