Amazon with Bedsure Collections has the 4-Piece Bedsure Sheet Set w/ 16" Deep Pocket (White, Queen) for $30 - 40% off with coupon code ZBUDSY4J at checkout = $18 with free shipping on $35+ or with Prime.

Also available in King (White) for $20, and in Queen (Beige Stripe) for $21, after code ZBUDSY4J.