Soma Intimates takes up to 50% off a selection of sale items, with prices from $5.48. Plus, cut an extra 20% off with coupon code "23602" to reduce starting prices to $4.38. (Some exclusions apply.) Shipping starts at $5.95. A couple best bets, with prices after coupon:
Vera Bradley via eBay offers the Vera Bradley Women's Pajama Pants & Top Set in Ziggy Zinnia for $21.99 with free shipping. That's tied with last week's mention as $36 below list and the lowest total price we could find. It's available in sizes XS to XL.