Nautica offers its Nautica Men's Plaid Flannel Pajama Set in Peacoat for $29.97. Coupon code "SUMMER40" drops the price to $11.99. With free shipping, that's $58 off list and the best deal we could find. It's available in sizes S to XXL. Deal ends August 1.
ThinkGeek offers its ThinkGeek Superman Unisex Brushed Terry Lounger for $9.99 plus $6.95 for shipping. That's $40 under list and the lowest total price we could find. This officially-licensed product features a removable metallic cape and is available in sizes S/M to XXL.