Starting in Medellin to to Coffee District and then on to Bogota. Two long bus rides, one by day, one by night. If I were a bit short on time and had to do an overnight bus journey from either Medellin to the Coffee District or the Coffee District to Bogota, which would be more advisable, if I don't want to miss the best scenery.
In other words, I'm planning to do one of these stretches during the day and the other at night. I know there is stunning scenery everywhere, I wish I had enough time to do all the bus journeys during the day.
Hope that rambling made sense... Many thanks for the advice. It's highly appreciated!