He was up and dressed by daylight, and until breakfast time he engaged himself in purposeless and noisy pursuits.

This futile energy, however, diminished steadily until about nine-thirty, after which his day was punctuated by a series of cat naps, as a broken sentence is punctuated by dots and dashes.
That small room at the rear of his office Barbara had cleared of its dusty accumulations--of its saddles and saddle-bags, its rusty Winchesters, its old newspapers and disorderly files--and had transformed into a retreat for him.

She had overcome his inherent prejudice against innovations of any sort by arguing gravely that the head of every firm should, nay must, have a private sanctum.
Tom approved of the change after he became accustomed to it, for he was subjected to fewer irritating distractions there than elsewhere.

Before long, in fact, he acquired the ability to doze placidly through almost any sort of business conference in the outer office.

It was his practice to sleep from nine-thirty until eleven, when "Bob" fetched him a glass of orange juice with a "spike" in it.