Monty was the house expert on sleeping positions. Above is his 'Legs somewhere, head somewhere else' position.
This above was his 'Broken neck' look. A position designed to make Lady Magnon have a fit.
This one was similar to 'Broken neck' but was known as 'Star gazer'.
And finally we have his 'Hang dog' position. A subtle hint that he needed a pukka dog bed.
Neither Bok nor Billy seemed to be continuing in the Monty tradition, they were/are rank amateurs in comparison.