[bigbr0ther]

A couple of things:
1) Prayer doesn't always mean putting your hands together and bowing down in front of the bed. When you see her laying there and she looks like she's concentrating, she could be praying at that very moment. Prayer doesn't always have to involve a ritual.
2) They get hundreds of hours of footage every day and only show 40 minutes of it. Watching someone pray is not interesting, so it would be unlikely that it would make it onto the daily show.