Mainstays Blackout Grommet Single Curtain Panel, 1 Panel, White, 40"W x 84"L
Mainstays Blackout Grommet Single Curtain Panel, 1 Panel, White, 40"W x 84"L
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Mainstays Blackout Grommet Single Curtain Panel, 1 Panel, White, 40"W x 84"L

Mainstays Blackout Grommet Single Curtain Panel, 1 Panel, White, 40"W x 84"LMainstays 1 Piece Blackout Energy Efficient Grommet Single Curtain Panel 40 x84 WhiteMainstays Grommet Blackout Single Curtain Panel Gray 40 W x 108 LMainstays 1 Piece Blackout Energy Efficient Grommet Single Curtain Panel 40 x84 Dark BrownMainstays Grommet Blackout Single Curtain Panel Beige 40 W x 63 LMainstays Blackout Grommet Curtain Panel 40 W x 63 L Blue LeafMainstays 1 Piece Blackout Energy Efficient Grommet Single Curtain Panel 40 x84 BeigeMainstays Grommet Blackout Single Curtain Panel Gray 40 W x 95 LMainstays Grommet Blackout Single Curtain Panel Gray Leaf 40 W x84 LMainstays Grommet Top Blackout Curtain Panel 1 Panel Gray Leaf 40 W x 95 LMainstays Grommet Blackout Single Curtain Panel Red 40 W x 108 LMainstays Grommet Top Blackout Curtain Panel 1 Panel White 40 W x 95 LMainstays Grommet Top Blackout Curtain Panel 1 Panel Dark Brown 40 W x 95 LMainstays Grommet Blackout Single Curtain Panel White 40 W x 63 LMainstays Grommet Blackout Single Curtain Panel Russet 40 W x 63 LMainstays 1 Piece Blackout Energy Efficient Grommet Single Curtain Panel 40 x84 BlackMainstays Blackout Grommet Single Curtain Panel 40 W x 63 L BlueMainstays Blackout Grommet Curtain Panel 40 W x 95 L Green LeafMainstays Blackout Grommet Single Curtain Panel Aqua 40 W x84 LMainstays Grommet Blackout Single Curtain Panel Red 40 W x 95 LMainstays Grommet Blackout Single Curtain Panel Gray Leaf 40 W x 63 LMainstays Grommet Blackout Single Curtain Panel Beige 40 W x 95 LMainstays Grommet Blackout Single Curtain Panel Gray Geo 40 W x 95 LMainstays Grommet Top Blackout Curtain Panel 1 Panel Gray Geo 40 W x 84 LMainstays Blackout Grommet Curtain Panel 40 W x 63 L Green LeafMainstays Blackout Grommet Single Curtain Panel Aqua Print 40 W x 84 LMainstays Blackout Grommet Curtain Panel 40 W x 95 L Blue LeafMainstays Grommet Blackout Single Curtain Panel Green Leaf 40 W x 84 LMainstays Grommet Blackout Single Curtain Panel Brown 40 W x 63 LMainstays Grommet Top Blackout Curtain Panel 1 Panel Beige Geo 40 W x 63 LMainstays Grommet Blackout Single Curtain Panel Black 40 W x 95 LMainstays Grommet Top Blackout Curtain Panel 1 Panel Gray Geo 40 W x 63 LMainstays Grommet Blackout Single Curtain Panel Beige Leaf 40 W x 63 LMainstays Grommet Blackout Single Curtain Panel Beige Leaf 40 W x84 LMainstays 1 Piece Blackout Energy Efficient Grommet Single Curtain Panel 40 x84 BlueMainstays Grommet Blackout Single Curtain Panel Beige Geo 40 W x84 LMainstays Grommet Blackout Single Curtain Panel Red 40 W x 63 LMainstays Grommet Blackout Single Curtain Panel Blue 40 W x 95 LMainstays Grommet Top Blackout Curtain Panel 1 Panel Beige Geo 40 W x 95 LMainstays Grommet Blackout Single Curtain Panel Black 40 W x 108 LMainstays 1 Piece Blackout Energy Efficient Grommet Single Curtain Panel 40 x84 GrayMainstays Grommet Blackout Single Curtain Panel Blue 40 W x 108 LMainstays Grommet Blackout Single Curtain Panel Black 40 W x 63 LMainstays Grommet Blackout Curtain Panel Gray Print 40 W x84 LMainstays Grommet Blackout Single Curtain Panel Gray 40 W x 63 LMainstays Grommet Blackout Single Curtain Panel Beige 40 W x 108 LMainstays Grommet Blackout Single Curtain Panel Russet 40 W x84 LMainstays Grommet Blackout Single Curtain Panel Beige Leaf 40 W x 95 LMainstays Grommet Top Blackout Curtain Panel 1 Panel White 40 W x 108 LMainstays 1 Piece Blackout Energy Efficient Grommet Single Curtain Panel 40 x84 RedMainstays Grommet Blackout Single Curtain Panel Blue Leaf 40 W x 84 L
Size:40"W x 84"L
Actual Color:White
Multipack Quantity:1

Key item features

  • Panel Details: This offering includes one single curtain panel, measuring 40 inches in width and 84 inches in length, designed to provide comprehensive window coverage.
  • Hanging Style: Featuring a convenient grommet top, the panel is compatible with curtain rods up to 1.5 inches in diameter, allowing for easy installation.
  • Light Control: Engineered with blackout properties, the panel effectively filters out sunlight, creating an ideal environment for sleeping or enjoying media.
  • Material Composition: Constructed from 100% polyester, the curtain panel offers durability and is machine washable for effortless maintenance.
  • Functional Benefits: Beyond light blocking, this panel is energy efficient, aids in noise reduction, and helps regulate room temperature, keeping spaces cooler in summer and warmer in winter.
  • Styling Guidance: For a tailored or dramatic aesthetic, choosing floor-length curtains is recommended to transform your window into a focal point.
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Customer ratings & reviews

4.4 out of 5 stars
stars8,359 ratings3,001 reviews
How item rating is calculated
  1. 5 stars75% (6,280)
  2. 4 stars11% (892)
  3. 3 stars5% (401)
  4. 2 stars3% (248)
  5. 1 star6% (538)

Reviews summary

Pros

  • : Offers high-quality materials at an affordable cost.
  • : Curtains have a sophisticated appearance.
  • : Made of thick fabric with a nice texture and weight.
  • : Fabric color is accurately represented in product images.
  • : Blocks most of the light.

Neutral

  • : Provides effective sunlight blocking, but may leave gaps due to size variations.
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  • +401 images
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Showing 1-3 of 3,001 reviews

Apr 30, 2026
Paula
Item details
Size: 40"W x 84"L
Color: White
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Good for the money

This is a good product for the price quality of thickness isn’t as good as others but what I expected for $11 a panel I would suggest buying it if finances are tight and you need something it helps Pictures show how much light it keeps out, specifically when the sun is shining directly into this room. Also the underside which is black.

Helpful?6MSBVKKMVV1F5019180727
Jun 12, 2025
Heather
Item details
Size: 40"W x 95"L
Color: Black
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Perfect for my needs

I was looking for something to help with the sun in my family room. I have blinds up but they do not do much for blocking the light coming in….. Trying to watch tv on a sunny day is nearly impossible with the glare. Decided on these. Fabric is soft and looks like satin. Thicker than I expected which is a plus. I got the black and wasn’t looking for a true blackout curtain. SOME sun does still shine through but I don’t want a completely blacked out room, bedroom sure, but not for my family room. These are perfect! The picture shows how all that all the light from the sun is now hitting the ceiling above instead of my tv.

Helpful?6MSBVKKMVV1F5019180727
Mar 12, 2026
Lori
Top Reviewer
Item details
Size: 40"W x 84"L
Color: Gray
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Mainstays Blackout Curtain

We bought 3 different curtains; two Mainstays %26 1 SunZero. My intention was to purchase all Mainstays brand, however, my partner went to the store %26 bought SunZero. Both are great. We are using them to close off the living room while using a portable ac. It makes the room dark and hopefully works as intended. If you want blackout curtains for you bedroom the Mainstays curtains will do the job. I purchase the Walmart brands whenever possible. Their products for the home are well made and last. I will always recommend their brand!

Helpful?6MSBVKKMVV1F5019180727