My mother (50s) and I (20s) stayed at the Harivihar Ayurvedic Heritage Home in October 2011. It was very quiet - there was only one French couple staying at the time. The heritage home itself is very elegant and beautiful, with huge gardens out the back including a nice pool. Every meal was of an excellent quality, with top-level service. My mother enjoyed the massage treatments and morning yoga sessions. Calicut is not one of Kerala's top attractions, but there were a few interesting things to do to pass a couple of days, especially since most of the time all we wanted to do was lie around reading books in the gardens. Definitely check out the local Keralan martial arts club, which Harivihar can guide you to.
The reason for ranking 'sleep quality' poor is not that there is anything wrong with the rooms, as the beds were very comfortable, but there is a temple nearby which starts loud chanting very early in the morning over a loudspeaker, and keeps it up for hours. Welcome to India!
