I wasn't looking for black sheets but instead a nice quality drape in black that I could use to change over a room during a Halloween party. Ended up finding a Walmart brand "Canopy" velvet drapery panel in Rich Black (54 inches wide x 84 inches long), rod or back tabbed style, at my local ROSS DRESS FOR LESS store. So far found 3 panels for my living room and am hoping to pick up another one to go in a doorway to my dining area (will use a spring tension rod with rings and clips to temporarily suspend it). Not sure what Walmart's original price was but ROSS had it for $9.99 a panel. I'm thinking they were probably $20 or more per panel at one time. Very nice quality.
I looked on Walmart's site to see if they were still carrying it but it doesn't seem so. Interesting to note where Walmart "dumps" some of it's overstock and clearance items.
Hubby found two more panels for our living room at another Ross near where he works so now I'm set inside. The room should look really good. I've had good luck finding "extras" of things when looking, but then we are fortunate to live in an area where so many store have multiple locations within a 50 mile radius of us, Ross being one of them. Same goes for TJMaxx, Dollar Tree, Big Lots, Walmart, Target, Spirit.