Walmart US Ecommerce Website

GENERAL MERCHANDISE

PHARMACY

GROCERIES

VUDU

SPARK

PHOTO

ADVERTISING

SAVINGS CATCHER

GIFTCARDS

INHOME

AFFILIATE

ONEAPP

LOTUS

HELP

SMART_REORDER

GROCERY

CONV_COMMERCE

Try it free

Glass WEB: Walmart + "Expired FT Eligible, Non Member" PIP Banner Wk 19 2025

Buy Box Ad Container Module for Desktop

Custom HTML Module - About Klarna

Custom HTML Module - About SalesFinancing - Second update

I want delivery savings + more with

Try 30 days of free delivery + more! Choose your plan at checkout.

#2e2f32

NEW Fulfillment Tue Apr 15 2025 2:17 PM EDT

MTZ Team | Marquee 1 Ad | Item Page

MTZ Team | Marquee 2  Ad | Item Page

MTZ Team | Skyline Ad | Item Page

Other products of interest

MTZ Team | Sponsored Product Carousel - Item Page

More items to explore

MTZ Team | Sponsored Product Carousel - Item Page Broad 

NEW AddonServicesRedesign Fri Jul 18 2025 1:30 PM EDT

NEW AddToCart Mon Jul 14 2025 3:50 PM EDT

NEW AddToCart Tue Apr 15 2025 2:19 PM EDT

NEW Bill29Compliance Wed Sep 30 2026 9:44 AM EDT

NEW BrandBoxDisplayAd Mon Jul 14 2025 9:14 PM EDT

NEW BrandLink Wed Apr 23 2025 12:07 AM EDT

NEW Breadcrumb Mon Apr 07 2025 8:23 PM EDT

Walmart Rewards Mastercard

NEW FinancingOptions Tue Dec 10 2024 3:32 PM EST

NEW Fulfillment Mon Jul 14 2025 4:00 PM EDT

NEW InternationalShipping Mon May 18 2026 1:02 PM EDT

New Item Page - Nutrition Value Placeholder Module, Wednesday, February 08, 2023, 5:11:53:90 pm

New Item Page - Product Description Placeholder Module, Wednesday, February 08, 2023, 5:14:04:38 pm

New Item Page - Product Ingredients Placeholder Module, Friday, February 10, 2023, 10:34:23:79 am

New Item Page - Product Specifications Placeholder Module, Wednesday, February 08, 2023, 5:15:29:61 pm

New Item Page - Reviews Placeholder Module, Wednesday, March 22, 2023, 10:04:29:34 am

New Item Related Shelves Module, Thursday, June 15, 2023, 6:08:51:10 am

Key item features

NEW ItemSnapshotHighlightsModule Fri Aug 28 2026 6:53 PM EDT

Specifications

NEW ItemSnapshotSpecificationModule Fri Sep 18 2026 1:18 PM EDT

 Price Match Policy

Prices, terms, and availability may vary online, in stores, and in–app. If the advertised price is not shown here, inventory at the advertised price may now be sold out. Please see the other offers, if available, while quantities last. Some items may be available from Marketplace Sellers, who set their own prices, and are not eligible for price match. Items sold in store by Walmart may be eligible for a price match to online items shipped and sold by Walmart. For variable weight items, price shown is an estimated price only – you will be charged for the actual weight of the item. See our

NEW LegalPriceDisclaimer Mon Jul 14 2025 4:11 PM EDT

NEW LegalPriceDisclaimer Wed Apr 30 2025 12:13 AM EDT

NEW ListsAndRegistries Tue Apr 15 2025 4:50 PM EDT

NEW PaymentPlans Mon Jul 14 2025 4:15 PM EDT

NEW PaymentPlans Tue Apr 15 2025 1:31 PM EDT

NEW PriceInformation Tue Apr 15 2025 1:30 PM EDT

NEW ProductFlags Thu Apr 10 2025 11:42 PM EDT

NEW ProductImages Tue Apr 15 2025 2:13 PM EDT

NEW ProductName Tue Apr 15 2025 12:53 PM EDT

NEW ProductReturnPolicyDetails Tue Dec 10 2024 3:17 PM EST

NEW ProductReturnPolicy Mon Jul 14 2025 5:04 PM EDT

Return Policy

NEW ProductReturnPolicy Tue Apr 15 2025 2:28 PM EDT

NEW ProductStickyBuyBox Wed Jul 02 2025 12:55 AM EDT

NEW PromoDiscount Tue Apr 15 2025 6:53 PM EDT

New SellersSecondaryBuyBox Module, Tuesday, September 05, 2023, 4:02:21:76 pm

Shop Confidently

NEW ShopWithConfidence Thu Jan 15 2026 2:20 PM EST

NEW SocialProofMessage Tue Apr 15 2025 7:17 PM EDT

NEW SoldAndShippedBy Mon Jul 14 2025 5:04 PM EDT

NEW SoldAndShippedBy Tue Apr 15 2025 2:23 PM EDT

New!

More savings, less stress.

HSK_Subscribetosave_E_v2

NEW SubscriptionOptionsModule Tue Apr 15 2025 6:44 PM EDT

NEW SubscriptionPriceMessage Wed Apr 23 2025 6:48 PM EDT

NEW Variants Wed Apr 23 2025 11:01 PM EDT

[Sticky] BuyBoxAd Mon Aug 11 2025 3:59 AM EDT

[Sticky] PriceInformation Mon Jul 14 2025 4:03 PM EDT

Syndigo

#000000

Item Carousel - Rich Relevance 1

RR carousel

Item Carousel - Rich Relevance 2

RR carousel 2

Item Carousel - Rich Relevance 3

Mainstays Cooper Blackout Window Curtains Panel

Blackout technology blocks out most outside light while giving you more privacy.

Blocks Out Light

Thermal insulation helps keep your room at a comfortable, optimal temperature.

Keeps Rooms Cozy

Built-in metal grommets slide smoothly onto any standard curtain rod up to 1.5 inches.

Slides On Easily

Simply toss the 100% polyester panel in the washing machine for easy cleaning.

Machine Washable

<ul><li>Light Blocking & Privacy: Blackout technology blocks most unwanted light and enhances privacy; darker base colors improve light blocking.</li><li>Easy Installation: Built-in metal grommets fit curtain rods up to 1.5" in diameter.</li><li>Thermal Regulation: Thoughtful design with thermal insulation helps maintain an optimal room temperature.</li><li>Material & Care: Made from 100% polyester and is machine washable.</li><li>Classic Design: Features a classic textured print and a woven texture.</li></ul>

Blackout <ul><li>Features a classic textured print</li><li>Blackout technology blocks out most unwanted light while enhancing privacy; the darker the base colour, the better the light blocking capabilities</li><li>Built-in, easy-to-hang metal grommets fit curtain rods up to 1.5" in diameter</li><li>Made from 100% polyester</li><li>Easy to clean & maintain; machine washable. Includes 1 single curtain panel; buy 2 for the complete look</li><li>Available sizes: 40" x 63", 40" x 84"Care instructions: Machine wash cold, gentle cycle. Use only non-chlorine bleach when needed. Tumble dry low heat. Cool iron as needed</li></ul>

Curtain Length

Colour

Window Treatment Sheerness

Curtain Panel Style

Curtain Width

Material

Pattern

Home Decor Style

Recommended Room

Size

Brand

Recommended Use

Recommended Location

Count Per Pack

Instantly infuse style in your rooms with the Mainstays Cooper Blackout Grommet Curtain Panel. Made from 100% polyester and with Blackout technology, it blocks out most unwanted light while giving you added privacy. Its thoughtful design with thermal insulation helps keep your room at an optimal, cozy temperature. A classic woven texture complements the modern metal grommet header, which slides easily onto your preferred curtain rod, up to 1.5" in diameter (sold separately).

Piece Count

Features

Cleaning, Care & Maintenance

Age Group

Assembled Product Dimensions (L x W x H)

Universal Product Code (UPC check)

Walmart Item #

fulfillment

title_shipToHome_date_delivery

Actual Color

Aqua

Teal

Fabric

Does not completely block out light, allowing some to pass through.

The product is of good quality

Excellent quality material and design. Great price, gifted and very well recieved.

Perfect Shade

[This review was collected as part of a promotion.] I hung them outside on my lanai to create an inside/ outside feel.  They really look nice and the material is good quality.  They definitely helped block the sun from hitting the inside room,  and helped keep it cooler.

Black-out Successful....

influenster.com

[This review was collected as part of a promotion.] I received these Mainstays Cooper Thermal Insulated Blackout curtain panels from Influenster
to try out. These panels are 40x84 so perfect for longer windows. I plan on using this for a glass door I have that lets in way too much sun. These panels block out the sun pretty well. They are also very easy to install as well. You just need a curtain rod. They are easy to remove and clean. They are in between thick and thick think quality of material. These will definitely come in handy during summer time. I look forward to purchasing more.

Blocks out the sun

[This review was collected as part of a promotion.] The curtains are not too thick or heavy on the curtain rod and also blocks out the light coming through the window.  It was easy to put up because of the grommets on the top of the curtains.  I would most definitely recommend these and will be buying more for my house.

Excellent quality and blocks light

[This review was collected as part of a promotion.] Love how dark they are especially at night keeping my neighbors patio lights from shining into my bedroom room at night. Keeps my bedroom cooler than usual

Nice and cooler temperatures in my bedroom

[This review was collected as part of a promotion.] The curtains do their jobs. It keeps light out and the material is thick enough that it doesn't let light in. It seems to keep the cold out a bit which is good. Only issue is they are a bit too short width wise to  fit my door fully so there is a gap on one of the edges.

Thick but not wide enough

[This review was collected as part of a promotion.] I tried Mainstays Cooper Thermal Insulated Blackout Curtain Panels hoping for full blackout and better insulation, but honestly, they're a lot thinner than I expected. The material feels light, and even though they help dim the room a bit, they don't completely block out the light like true blackout curtains should. They look nice and hang well, but if you're looking for total darkness or serious thermal insulation, these probably won't cut it on their own. I'd recommend layering them with a liner if you still want to make them work.

Low cost low quality

[This review was collected as part of a promotion.] Great curtains just need to be ironed. Block all light from window which is great. The quality of the curtains themself are alright not the most high quality material. Def worth value.

Great bedroom curtains

Bought few months ago, and today finally installed them in my bedroom. Well, the curtains are supposed to be "Blackout" type, but they don't block any light. Very thin, light, and transparent, you can almost see through them (see the photos). Not sure what kind of mix up happened on the factory or elsewhere, but the result is, the item description doesn't fit the item.

Not blocking light at all.

Mainstays Cooper Blackout Window Curtains Panel front-facing single panel in a dark base colour with classic woven texture; 100% polyester blackout fabric with thermal insulation and metal grommet header that fits curtain rods up to 1.5" dia.; suitable for darkening bedrooms or creating a home-theatre space.

Mainstays Cooper Blackout Window Curtains Panel

Key item features

Specifications

Shop Confidently

How you’ll get this item:

Your data, your choice