For sound, comfortable sleep during uncomfortable wartime conditions.You've been stuck in a cold barracks for 72 hours with nary an order passed down from your blustering and obviously exhausted superior officer.Thankfully, you brought some additional, more comfortable apparel for your three-hour sleep shift -- the government-issued armor is heavily padded, extremely rigid, and therefore the enemy of productive sleep.What did you pack? Why, the Captain America Snow Heather Blue Pajama Pants, of course.Rendered in a soft blending of 60 percent cotton and 40 percent polyester, these Captain America pajama pants feature white, snow-like speckling brought about by the heather effect -- -- an interweaving of colored materials creating a subtle, swirling marbling.Running vertically along the left leg (your left), a thickly printed Captain America logo capped by Cap's go-to gear. Why are these pants -- and by extension, you -- simply the coolest?More reasons why your Captain America pajama pants are simply the coolest:Soft? Oh, yeah.An elastic waistband with drawstring tie.Button-down fly.Spacious pockets.