7 Best Color Curtains to Keep Out Heat for Bedrooms

Yakamok Blackout Curtain Panels are the top pick for most buyers looking for the best color curtains to keep out heat. Their main advantage is a blackout design that blocks strong sunlight before it warms the room, while multiple color choices make them easier to match with existing decor. These panels suit bedrooms, nurseries, and sun-facing living rooms.

This guide is for shoppers who want cooler rooms without relying only on air conditioning. For this type of window covering, check the panel size first, then examine the fabric layers and lining. Wider coverage and thicker construction can limit light and heat better than a thin decorative curtain. Also confirm the number of panels included and the rod-pocket or grommet style. The seven picks below are ranked with clear reasons and honest drawbacks for each.

Quick Comparison

7 Top Curtains for Blocking Heat

These seven curtain picks are ranked by heat-blocking features, counting down to the top choice for sunny rooms.

7. NICETOWN Blackout Curtains, 42″ x 63″, 2 Panels

Best for: Small bedrooms needing darker sleep

These NICETOWN curtains include two panels, each measuring 42 inches wide by 63 inches long. The fabric uses a triple-weave construction without a separate liner, so it feels soft but has noticeable weight. Six grommets sit along the top of each panel, and their 1.6-inch inner diameter fits many standard curtain rods. At around $12, this set offers a low-cost way to cover a short bedroom window.

The darker colors can block about 85% to 99% of incoming light and UV rays, although results depend on the shade and window fit. They can also reduce some outside noise and improve TV visibility in bright rooms. The material may help limit summer heat and winter drafts near the glass, while reducing sun exposure on floors, furniture, and artwork. Each panel arrives trimmed and mostly wrinkle-free. Care is simple, since the curtains can go in a washing machine with cold water and a tumble dryer. A quick iron or steam treatment may still help after washing.

Pros

• Two 42-by-63-inch panels cover many small windows.
• Six metal grommets per panel make rod installation quick.
• Triple-weave fabric blocks strong light and helps reduce glare.

Cons

• The 42-inch panel width may look too narrow on wider windows.
• Light-colored versions may block less light than dark shades, and the fabric will not create total darkness or soundproof a room.

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6. ChrisDowa Blackout Curtains

Best for: Sleep-focused bedroom windows

The ChrisDowa blackout curtain set includes two light gray panels, each measuring 42 inches wide by 63 inches long. A black liner forms the second layer and blocks incoming sunlight and UV, making the room darker for sleep, naps, or late weekend mornings. Each panel has six silver metal grommets with 1.6-inch inner openings, so they fit standard curtain rods and slide without much effort. At around $19, this set covers a 84-inch-wide window area before allowing for overlap.

The soft fabric has no strong chemical smell, which suits bedrooms, nurseries, and kids’ rooms. The thick construction can reduce outside light and provide more privacy than a single-layer panel. It may also limit some heat loss in winter and heat gain in summer near the window. These curtains are machine washable on a gentle cycle below 86°F, but they require low tumble drying and may need a warm iron after washing. The light gray front looks neutral, while the black backing faces the glass.

Pros

• Blocks sunlight and UV for a darker bedroom.
• Includes two 42-by-63-inch panels with six grommets each.
• Black backing may reduce heat and cold transfer near windows.

Cons

• The 63-inch length may be too short for floor-length windows.
• Grommet spacing and the 1.6-inch openings may not suit every curtain rod.

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5. Blackout Curtains

Best for: Dark bedrooms and living rooms

This set includes two navy blue and greyish white ombre panels, each measuring 52 inches wide by 84 inches long. Together, they cover 104 inches of window width. Each panel has eight silver metal grommets with 1.6-inch inner openings, so they should fit most standard curtain rods. The fabric is 100% polyester with a black backing. At around $22, the pair offers a budget-friendly way to cover a large window.

The wavy line pattern gives the two-tone design more detail than a plain gradient curtain. You can switch the panel positions to change which color sits on each side. The manufacturer claims the backing blocks all sunlight and UV rays, while also reducing some outside noise. The thermal fabric may help limit heat loss in winter and incoming heat in summer, though results depend on the window and room. Care is simple, with cold-water washing, gentle cycles, low-temperature drying, and low ironing on the back.

Pros

• Two 52-by-84-inch panels cover a wide 104-inch span.
• Eight grommets per panel make hanging and opening straightforward.
• Black backing supports strong room darkening and added privacy.

Cons

• The 84-inch length may not suit tall windows or doors.
• Polyester can look less natural than cotton or linen, and the dark backing may show from outside.

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4. Mrs.Naturall Thermal Blackout Curtains

Best for: Dark bedrooms with summer sun

Mrs.Naturall Thermal Curtains come as a two-panel set. Each panel measures 42 by 84 inches, giving the pair a total width of 84 inches. The cream-colored front uses a blended linen-style fabric designed to drape neatly and resist wrinkles. A white backing helps block sunlight and UV rays while supporting thermal insulation. At around $25, this set offers broad coverage for a relatively low price.

The hanging choices make these panels more flexible than basic rod-pocket curtains. You can use the included hooks and rings on a rod or track, hide the rod with the back tabs, or use the classic rod pocket. Clip rings work too, but you must buy those separately. The manufacturer also claims the lining can reduce outside noise and help balance room temperature. Care is simple: wash in cold water, skip bleach, tumble dry on low, and cool-iron the front when needed. The 84-inch length suits many standard bedroom and living room windows.

Pros

• Two 42-by-84-inch panels cover an 84-inch-wide span.
• White backing supports full sunlight blocking and daytime privacy.
• Included hooks and rings provide more hanging options.

Cons

• Clip rings are not included, so that setup costs extra.
• The 84-inch total width may look sparse on wider windows or sliding doors.

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3. MIULEE Blackout Curtains, 2 Panels

Best for: Small bedroom windows needing privacy

The MIULEE curtain set includes two dark gray blackout panels, each measuring 40 by 63 inches. Together, they cover 80 inches of width. Six silver, rust-resistant grommets sit on each panel, and their 1.6-inch inner openings fit many standard rods. At around $10, this pair is a low-cost option for bedrooms, dorms, offices, or living rooms.

The fabric uses 225GSM polyester with a three-layer weave and a black yarn layer inside. Both sides have the same color, so the curtains look consistent from either direction. Light reduction depends on the shade. Darker colors can block up to 95 percent, while medium shades may block about 80 percent. The panels can also reduce UV exposure and glare, though they will not create complete darkness in every room. The thermal fabric may help limit heat gain and cold air, with claimed energy savings of up to 15 percent. Machine washing in cold water and low-temperature steaming make care simple.

Pros

• Two 40-by-63-inch panels cover an 80-inch-wide window.
• Triple-layer, 225GSM polyester improves privacy and light control.
• Six 1.6-inch grommets per panel fit many standard curtain rods.

Cons

• The 63-inch length may leave taller windows partly uncovered.
• Light blocking varies by color, from about 60 to 95 percent, so medium shades may not suit daytime sleepers.

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2. MIULEE Blackout Curtains

Best for: Budget bedroom light control

The MIULEE curtain set includes two black panels, each measuring 40 by 84 inches. Together, they cover 80 inches of width. Each panel has six silver grommets with a 1.6-inch inner diameter, so they fit many standard curtain rods. At around $15, this pair offers a low-cost option for bedrooms, living rooms, home offices, or movie spaces.

The 225GSM polyester fabric uses three woven layers, including a black middle yarn layer for privacy and light reduction. Black and other dark colors can block up to 95% of incoming light, while medium shades block about 80%. White panels reduce light by about 60%, so color choice matters. The fabric also helps limit summer heat and winter drafts, with claimed energy savings of up to 15%. Cold machine washing and low-temperature drying make routine care simple.

Pros

• Two 40-by-84-inch panels cover a wide 80-inch span.
• Dark colors can block up to 95% of light and UV exposure.
• Six 1.6-inch grommets per panel fit many standard rods.

Cons

• Light control varies sharply by color, with white blocking only about 60%.
• The 84-inch length may puddle or hang unevenly on shorter windows.

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1. Yakamok Blackout Curtain Panels

Best for: Bedrooms needing daytime darkness

The Yakamok Grey blackout set includes two lined panels, each measuring 52 inches wide by 84 inches long. Each panel has eight silver grommets with a 1.6-inch inner diameter, so they fit many standard curtain rods and slide open easily. The fabric uses two layers of polyester with a black liner on the back. That construction is made to block sunlight, UV rays, and outside views more effectively than a single-layer curtain.

The thick, triple-weave material can also help soften outdoor noise and limit heat entering during summer. It may help rooms stay warmer in colder weather, which could reduce heating and cooling demand, though results depend on the window and room. At around $22 for two panels, this set offers useful coverage for a low price. Care is simple, but the panels require cold-water machine washing, mild detergent, no bleach, and low-temperature ironing. The darker backing may also look less decorative from outside.

Pros

• Two 52-by-84-inch panels cover a wide bedroom or living-room window.
• Two-layer polyester construction blocks light and improves daytime privacy.
• Eight 1.6-inch grommets per panel make hanging and opening straightforward.

Cons

• The heavyweight fabric can require a stronger curtain rod than thin drapes.
• The 100% blackout claim may vary with light leaking around the window edges.

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Buying Guide

The most important factor is a reflective, tightly woven backing, not color alone. A pale curtain with thermal lining can block more solar heat than a dark, unlined panel.

• Color: Choose white, cream, light gray, or beige for sunny windows. These shades reflect more sunlight than navy, charcoal, or black fabric.
• Thermal backing: Look for a white or silver acrylic, foam, or polyester backing. A blackout panel with at least two fabric layers offers better heat control than a single thin layer.
• Coverage: Measure the glass, then choose curtains at least 6 inches wider on each side and 4 inches above the frame. Extra coverage limits hot air around the edges.
• Opacity: Select 90% to 100% blackout fabric for bedrooms and south-facing rooms. Room-darkening curtains below 90% opacity may reduce glare but allow more solar warmth.
• Mounting and fit: Install the rod close to the ceiling and let panels reach the floor. For strong afternoon sun, close them before direct light reaches the window, often by 11 a.m. to 1 p.m.

If you cannot have everything, prioritize a light-colored curtain with a certified thermal or blackout lining.

Frequently Asked Questions

How do curtain colors help keep a room cool?

Light-colored curtains, especially white, beige, and pale gray, usually keep rooms cooler than dark curtains. They reflect more sunlight before it reaches the glass, which can reduce indoor heat near sunny windows. For stronger protection, choose a lined panel with a white backing and close it during the brightest six hours.

What color curtains block the most heat from sunny windows?

White or pale curtains with thermal or reflective backing usually block the most heat among common window treatments. Color helps reflect sunlight, but the lining does more work against radiant heat. Look for a tightly woven panel with a white backing, then fit it wider than the window by about 6 to 12 inches.

Can dark curtains keep heat out?

Dark curtains can keep heat out only when they have a reflective or thermal lining; dark fabric alone may absorb sunlight and warm the room. If you prefer navy or charcoal, choose a blackout style with a white-facing outer layer. Keep the panels closed from late morning through mid-afternoon.

Are blackout curtains better for keeping heat out than regular curtains?

Blackout curtains are often better than thin light curtains because their dense fabric and backing reduce both sunlight and heat transfer. They still work best in light shades, such as white, cream, or pale gray, especially on south- or west-facing windows. A curtain that reaches the floor also limits gaps around the glass.

Conclusion

Yakamok Blackout Curtain Panels are the top recommendation for shoppers who want strong light reduction and a practical way to limit daytime heat in bedrooms, nurseries, or living rooms. If your priority is a lighter room appearance or softer decorative look, choose a thermal curtain in a pale, neutral shade, but confirm its lining and heat-blocking claims before ordering. Before buying, double-check each panel’s width and length, rod and hanging-style compatibility, package quantity, and current price, since listings can change. Good coverage matters as much as fabric color, so measure the window and add enough width for overlap. A close fit helps reduce bright gaps around the edges.