Best Blackout Curtains for Bedroom (2026)
True blackout curtains block 99%+ of light — the difference between a room where you can see your hand at noon and one where you genuinely cannot. Most 'blackout' curtains are actually room-darkening, blocking 85-95% of light. Here's how to tell the difference before you buy.
Our Top Picks at a Glance
Sun Zero Oslo Theater Grade
$24/panelBGment Thermal Insulated Blackout Curtains
$25/pairBlackout vs. Room-Darkening: The Real Difference
True blackout curtains use a black yarn woven between two layers of fabric or a blackout coating on the back. They block 99-100% of light. Room-darkening curtains block 85-95% — enough to sleep during the day but you'll still see light around the edges. The NICETOWN panels use triple-weave technology rated at 99.9% light blocking.
Thermal Benefits Beyond Darkness
Blackout curtains reduce heat gain through windows by 24-33% in summer (U.S. Department of Energy estimate). In winter, they reduce heat loss. For bedrooms with west-facing or south-facing windows that get afternoon sun, blackout curtains noticeably reduce air conditioning load and room temperature.
Getting True Blackout: Installation Matters
Even perfect blackout fabric leaks light at the edges if the curtain rod extends only to the window frame width. For true blackout, mount the rod 6-12 inches beyond the window frame on each side and hang curtains that extend to the floor with no gap at the bottom. A curtain wider than the window is required for complete coverage.
Why We Recommend These
Every product on this page was selected based on verified buyer feedback, hands-on research, and value at the listed price point. We don't recommend products we wouldn't use ourselves. Affiliate commissions help keep this site running — they don't influence our rankings.
The Bottom Line
If you're looking for best blackout curtains bedroom, the options above are the best starting point. Start with our top pick for the best balance of performance and value. See the others if you have specific requirements around price, size, or features.