Best Blackout Curtains for Darker Naps and Longer Sleep (2026)

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Blackout curtains darken a nursery for daytime naps and early-summer bedtimes, supporting the darkness that helps regulate sleep, and both coverage and cord safety matter. Look for genuine light-blocking fabric or liners, a width and length that overlap the window frame to limit light leak around the edges, and critically, a cordless or wand-operated design, since dangling blind and curtain cords are a serious strangulation hazard for children. Blackout curtains suit any bright bedroom, north-summer daylight, and babies who wake with the dawn. A practical tip is to choose cordless options wherever possible and keep the crib well away from any window covering with cords, mount the rod wider and higher than the window to reduce side gaps, and consider a portable blackout blind or cling film for travel, so nap-time darkness follows your baby on trips.