Skip to content
PRIME DAY SALE
Portable Blackout
Blackout Curtains
Custom Drapery
Blackout Hardware
Sale
1000+ Reviews
Log in
Cart
0
Portable Blackout
Blackout Curtains
Custom Drapery
Blackout Hardware
Sale
1000+ Reviews
Sleepout® Blackout Experts Blog
April 15, 2026
Why 7-9 Hours of Sleep Is Essential for Optimal Brain Function
Learn more
All posts
blackout curtains
brain function
REM sleep
sleep debt
Search
Search
Clear
Choosing a selection results in a full page refresh.
Opens in a new window.
