Editor's Choice
Budget room-darkening thermal
Excellent value
True blackout
Light leaks at edges
$35
View Deal
Per panel, 52x84"
Best Blackout Curtains 2026
Light is one of the most powerful signals affecting your sleep. Compare traditional blackout curtains, portable solutions, and thermal options to find the best darkness for your bedroom.
Last updated: January 2026
3 products compared
Editor's Choice
Sleepout Portable Blackout
A
Strong Evidence True 100% blackout with a portable suction-cup design. Perfect for travel, rentals, or anyone who wants complete darkness without permanent installation.
$70
View Deal
Pros
• True 100% blackout
• Perfect for travel
• No installation needed
• Works on any window
Cons
• Suction cups may fall
• Not the prettiest
• Small window coverage
Filter by Feature
Maximizing Darkness
Seal the edges
Use curtain rod returns, magnetic tape, or velcro strips to eliminate light leaks around curtain edges.
Cover electronics
Even small LEDs from devices can affect sleep. Use electrical tape or remove devices from the bedroom.
Consider a sleep mask
For complete darkness or travel, combine blackout curtains with a quality sleep mask as backup.
Mind the door
Light from hallways or other rooms can seep under doors. Use a draft stopper or door sweep.
Frequently Asked Questions
Do blackout curtains really improve sleep?
Yes, light exposure is one of the strongest signals to your circadian rhythm. Even small amounts of light can suppress melatonin production and reduce sleep quality. Blackout curtains are especially important for shift workers, light-sensitive sleepers, or anyone in areas with long summer days or streetlights.
What's the difference between room-darkening and blackout?
Room-darkening curtains block 95-99% of light but may still allow some glow around edges. True blackout curtains block 99-100% of light. For sleep optimization, aim for 99%+ blackout and use curtain rod returns or magnetic tape to seal edges.
Do blackout curtains help with temperature?
Many blackout curtains have thermal insulation properties that reduce heat transfer through windows. This can help keep rooms cooler in summer and warmer in winter, potentially reducing energy costs by 10-25%.
Are portable blackout solutions as effective?
Portable options like Sleepout use suction cups to attach directly to windows, often providing better blackout than traditional curtains because they seal against the glass. They're excellent for travel, rentals, or nurseries.