Best Blackout Curtains for Shift Workers: Sleep in Daylight Hours

Our top pick is the Eclipse Palisade Blackout Curtain Panel (best overall), because thermaback backing blocks nearly all direct light through the fabric itself. The runner-up is the Lush Decor Insulated Grommet Blackout Curtain Panel Pair, followed by the Sun Zero Easton Blackout Grommet Curtain Panel.

For most buyers, yes. It ranks #1 in our blackout curtains for shift workers research, though sold as a single panel, so covering a standard window with two panels costs double the sticker price.

Almost none do, in practice. Most branded blackout curtains block 98% to 99.9% of direct light through the fabric itself, using a tightly woven or foam-backed layer. The light that gets through a well-fitted blackout curtain usually comes from the sides and top, where the panel does not fully cover the window frame, not through the fabric. For shift workers who need a genuinely dark room, pairing blackout curtains with a wrap-around fitting (extending the rod several inches past the window frame on each side) closes most of the remaining gap.

Wider than the window, not equal to it. A single panel or pair should total at least 2 to 2.5 times the width of the window when open, so that when closed the fabric fully overlaps the frame with no gap. For a 36-inch window, that means panels totaling 72 to 90 inches of width closed. Mounting the rod 4 to 6 inches beyond the frame on each side, rather than directly above the window, closes the side light gaps that let in the most light during a bright afternoon nap.

Yes, for anyone sleeping during peak daylight hours. A single blackout curtain layer blocks the large majority of light, but a second layer, either a dedicated blackout liner clipped behind the curtain or a second blackout panel, closes the remaining gaps at the seams and reduces the faint glow that still comes through most single-layer fabrics at midday. For night-shift workers sleeping from roughly 8am to 4pm, when sunlight is strongest, the second layer makes a noticeable difference.

The same dense weave and foam or acrylic backing that blocks light also dampens sound, and most blackout curtain brands advertise a modest noise reduction, typically in the 20% to 25% range in lab testing. This is a meaningful but partial effect, comparable to closing a window versus using dedicated soundproofing. For shift workers on a noisy street, blackout curtains help but are not a substitute for a white noise machine or earplugs.