Maintain optimal leg temperatures while showing off your deep Marvel knowledge.

Sure, most people -- the "casual" fans -- are familiar with Captain America, Spider-Man, Iron Man, and the Hulk.

Spider-Woman and Luke Cage? Although Luke is benefiting from a hit Netflix series, he's not quite "there" as far as universal popularity. You're not seeing him on pillow cases, is what I'm saying.

And Spider-Woman? Well, no -- someone would actually have to crack open a Marvel comic book to learn all about the daring and artificially inseminated Jessica Drew.

Thankfully, our extremely comfortable Marvel Heroes Sueded Fleece Pajama Pants begin the conversation -- and the education -- by playing the hits and mixing in a few deep cuts.

Made from a ridiculously soft polyester blended with a moderately fuzzy sueded fleece, these black, Marvel heroes pajama pants feature the following 70s-rendered Marvel craniums:

Captain America! Luke Cage! Spider-Man! Iron Man! Spider-Woman! The Hulk!

So, celebrate the best and the lesser-known-but-still-the-best Marvel heroes while sleeping/lounging/binge-watching!

More reasons why your brand-new Marvel pajamas are simply the coolest:

• Soft? Oh, yeah.
• An elastic waistband with drawstring tie.
• Button-down fly.