Ralph Lauren offers its Polo Ralph Lauren Men's Allover Pony Sleep Pants for $20.99. Plus, coupon code "LOVE16" bags free shipping. (It also guarantees delivery by Valentine's day.) That's $29 off list and the lowest total price we could find. It's available in sizes S to XL, although not in all size/color combinations. Deal ends February 9.

Update: In addition, apply coupon code "FEB25" to drop the price even lower to $15.74.