William Oughtred

He told me that his father did use to lye at bed till 11 or twelve o'clock, with his doublet on, ever since he can remember. Studied late at night ; went not to bed until 11 o'clock ; had his tinder box by him ; and on the top of his bed-staff, he had his ink-horn fixed. He slept but little. Sometimes he went not to bed in two or three nights and would not come down to meals till he had found out the quaesitum.

died in 1660.