On: Sleep duration is associated with brain structure and cognitive performance

[calcsam]

Slightly different experience. Stopped using an alarm clock when we had kids. Seem to always wake up between 6 and 7am and often tired during the day ;)

[watwut → calcsam]

Kids wake up with light and sun. Then they wake you. Invest into really dark things on windows in kids room.

Also, don't send them to sleep too soon.