What is the best blackout curtain for bedrooms?
Understand blackout levels
Blackout curtains are rated by how much light they block. 'Room darkening' typically blocks 80–95%, while 'blackout' blocks 99–100%. For a bedroom, aim for 100% blackout if you're sensitive to light. Some curtains achieve this with a tight weave, while others use a coated backing or a separate blackout liner. The color of the lining matters: white liners reflect heat, while black liners absorb it.
Choose the right fabric and construction
Triple-weave fabrics (three layers woven together) are effective and look like regular curtains. Coated fabrics are cheaper but may feel stiff and can crack over time. For a softer look, consider a blackout liner behind a decorative curtain. Grommet tops slide easily but let light leak through the holes; rod pocket or back tab styles block more light. For maximum darkness, use a wrap-around rod or a ceiling-mounted track that eliminates side gaps.
- Triple-weave: good balance of style and blackout
- Coated: budget-friendly but less durable
- Lined: best for light blockage and insulation
- Grommet: easy to open but light leaks
- Rod pocket/back tab: better light control
Consider size and installation
Curtains should be wider than the window—at least 1.5 to 2 times the window width—to create folds that block light. For length, floor-length or sill-length works, but for total darkness, extend the rod beyond the window frame and mount it close to the ceiling. If you're handy, a ceiling-mounted track with overlapping panels is the gold standard for blackout.
Common mistakes
- Assuming all blackout curtains are the same—many block only 80–90% of light, which may not be enough for light sleepers.
- Buying curtains that are too narrow—if they don't overlap when closed, light will leak through the sides.
- Ignoring the rod—a standard rod leaves gaps at the top and sides; a wrap-around or ceiling-mounted track blocks more light.
