Rod Pocket Blackout Curtains, 2 Panels 42x63in, Bluestone

The darkness in these comes from the middle of the cloth. Three layers of polyester are woven together with black yarns running through the center layer, which puts the blocking inside the fabric instead of in a coating applied to the back. The result is 80 to 95 percent of sunlight and UV stopped, with the darker shades of the line sitting at the upper end of that figure.

They hang from a rod pocket rather than grommets: a 3-inch channel across the top that takes any rod up to 2 inches thick and gathers the fabric into soft vertical folds, a softer header than the even scallops of metal rings. Two panels per set at 42 by 63 inches each, in a Bluestone that moves between blue and gray with the light. The weave also holds room temperature steadier through summer and winter and takes the edge off noise from outside.