A woman tending to her husband in the middle of the night by Jan Saenredam, 1595 The myth of the 8 hour sleep - good article re growing body of evidence that it's unnatural!
The Domino is a modern and stylish children’s bed featuring shelves integrated into a bunk bed sleeping space. The Domino grey has a rounded, contemporary and fun design and two bunks with an in-built, segmented shelving unit perfect for books, alarm clocks, toys and other bits and bobs they like
"Historically human beings naturally slept in two distinct phases, with a period of wakefulness separating the two phases. There is evidence from sleep research, as well as from the reports of individuals, that this bi-modal