By A Mystery Man Writer
WebMD - It's true that as we get older, our sleep patterns change -- but at any age, you still need quality rest to be healthy.
How Much Sleep Do You Need?
Sleep University Hospitals
Sleep for kids & pre-teens: 5-11 years
Surprising fact: We sleep better (and faster) with age
How Much Sleep Do Older Adults Need? - Elder Care Alliance
Frontiers Sleep and brain evolution across the human lifespan: A mutual embrace
How Can Menopause Affect Sleep?
REM, Light, Deep: How Much of Each Stage of Sleep Are You Getting? - Fitbit Blog