Guess the Novel 2

Can you guess the title of the novel from the beginning paragraph? The novel is contemporary, written in 2005, by a British author with the initials IM. His picture is at the right:

Some hours before dawn Henry Perowne, a neurosurgeon, wakes to find himself already in motion, pushing back the covers from a sitting position, and then rising to his feet. It's not clear to him when exactly he became conscious, nor does it seem relevant. He's never done such a thing before, but he isn't alarmed or even faintly surprised, for the movement is easy, and pleasurable in his limbs, and his back and legs feel unusually strong. He stands there, naked by the bed--he always sleeps naked--feeling his full height, aware of his wife's patient breathing and of the wintry bedroom air on his skin. That too is a pleasurable sensation. His bedside clock shows three forty.

This is only about half the paragraph. I got tired typing.

theteach