The train trip from Bangkok to Chiang Mai (13 hours) was quite an experience. The group had a car with sleeper berths - fresh sheets, pillow and blanket. We had dinner on the train - delivered to the seat. It's pretty difficult for me to sleep on the train with all its stops and starts but did manage to get a few hours.
We arrived in Chiang Mai at 7:30am and took a tuk tuk to the guest house - nice place but we had to wait for check in - large group of people from Germany checking out. So during the wait - a little Internet time.
Today will be touring Chiang Mai with a dinner and traditional Thai dance tonight.