Heavy Sleeper Alarm Clock

I've been married for nearly 8 years. I'm 29, with 5 children. My spouse is an "early in the a.m." kind of guy when it comes to sex. Which makes it hard, as I'm a pm. woman. I however.. sleep so heavy..during sex (or in general) I rarely remember having sex, or remember being awoken, or think it was a dream.

How many hours of sleep do you need? What happens when you don't get enough? Explore the cycles and stages of sleep and how to recover from sleep debt.

Slow-wave sleep ( SWS), often referred to as deep sleep, consists of stage 3 and 4 of non-rapid eye movement sleep, according to the Rechtschaffen & Kales (R & K) standard of 1968. As of 2008, the American Academy of Sleep Medicine (AASM) has discontinued the use of stage 4, such that the previous stages 3 and 4 now are combined as stage 3.

It turns out that some people's brains are better than others' at blocking the constant incoming flow of environmental stimuli during sleep.