Blackout Window Cover 79 x 57 in.

Bright sunlight can make it hard to sleep, settle in for a movie, or keep a travel space dark. This portable blackout window cover is designed to address that without drilling: it attaches to the window frame with adhesive and hook-and-loop fasteners, then can be trimmed to fit.

For a bedroom, RV, or temporary stay, the appeal is flexibility rather than a permanent window treatment. You can pack it away between uses, but getting a close fit takes measuring and cutting.

Key specifications

The cover measures 79 x 57 inches and is made from thickened Oxford cloth. Its black blackout surface and silver coating are intended to block sunlight and UV rays and reflect heat. The listing describes it as a blackout shade, but doesn’t give a tested light-blocking percentage or a quantified thermal rating, so there’s no way to compare those results precisely with a fixed blind or window film.

It’s designed to be cut to size and attached without drilling. The maker says the removable adhesive can come off without residue and that the cover stays attached with frequent removal. Those claims may matter if you’re renting or don’t want to alter a window frame, actual fit and attachment will depend on careful measuring and placement. For the intended blackout effect, the instructions say to cut the material slightly larger than the window.

Who it’s for

This format suits someone who needs darkness in more than one place, such as a bedroom at home and a hotel room or RV while traveling. It may also help with skylights, angled windows, or triangular windows, where standard curtain panels can be awkward. Picture arriving at a bright hotel room, measuring the window, trimming the sheet, and fastening it to the frame instead of trying to hang a rod.

It makes sense if you want a removable, cut-to-fit cover and don’t need a conventional curtain that opens and closes. It might not be a great match if you want a finished window treatment that needs no trimming, or if you’d rather avoid adhesive on the frame altogether.

Included in the package

The package lists one blackout cover, 18 nano-adhesive stickers, 12 pairs of adhesive, a tape measure, a cutting knife, and a portable storage bag. That gives you the listed tools and fasteners for setup, plus a way to carry the cover when it’s not in use. The product information doesn’t specify how many windows the included adhesive can cover, so plan around the single sheet and the dimensions provided.

Before you decide

Does it need a drill or curtain rod? No drill is required, the cover is attached to the window frame using the included adhesive and hook-and-loop fastening system.

Can it fit a smaller window? It is designed to be cut to size. Measure before trimming, since cutting the sheet is part of getting a closer fit.

Is it easy to take on a trip? The cover is described as portable and comes with a storage bag. It’s intended for use in places such as hotels, offices, vacation homes, and RVs.

When it makes sense

Choose this approach when portability and a custom cut matter more than the ready-to-hang convenience of a standard curtain. It can be useful for creating a darker sleep or media space without drilling, especially when the same cover needs to travel. Skip it if you need a permanent, adjustable window covering or don’t want to trim fabric yourself. The listing’s blackout and heat-reflection benefits are stated by the maker, but it provides no measured performance figures to help set expectations for a particular window.