Amazon: 2-Piece Premium Ultra Soft Weighted Blanket with Removable Cover, 15 lbs, 60"x80", Queen Size, Gray for $80 + Free Shipping
Amazon has the 15lb 60" x 80" Weighted Blanket with removable cover from Aura Blankets (Grey) on sale for $79.99 after clipping the $20 coupon.
https://www.amazon.com/dp/B078S194F1