It is possible to power-nap ( http://en.wikipedia.org/wiki/Power_nap http://en.wikipedia.org/wiki/Power_nap ) on public transport. Your timing has to be good bu

It is possible to power-nap ( http://en.wikipedia.org/wiki/Power_nap http://en.wikipedia.org/wiki/Power_nap ) on public transport. Your timing has to be good but it will quickly improve with practice. Masters of the art are able to nap while standing on a train and wake shortly before their destination.