Perhaps I’m being too optimistic, but I like to think that all men somehow remain children at heart and never outgrow certain facets from the wonder years known as youth. That's why it's not crazy to want to reignite those warm, cozy, care-free moments, like snuggling up with some chicken soup and staying in your pajamas all day. Nothing taps into that nostalgic feeling better than a onesie. Yes, believe it or not, onesies are now available in adult sizes, and they’re glorious. Here, we've rounded up the best of the best. Let’s take a look and see what’s on the market for your inner child. FollowMe Adult Onesie Pajamas Great For A Night In Or OutThis black microfleece onesie with skeleton print is perfect for snuggling up on the couch or going to a party.Best OverallFind on Amazon Yes, kids look cute in onesies, but let’s face it, adults look awesome in them. We also have more fun in them. Plus, who doesn’t love a great childhood throwback, especially one that’s so darn comfortable? Thankfully, #FollowMe has designed the perfect overall onesie that can be worn on the couch, in bed, at a party, and even at a karaoke bar. It’s a win-win if you think about it. You’ve got an outfit that can spice up an evening, while at the same time, keeping it at an even level of chill. Pros Can be worn for a relaxing night in or a fun night out Made using ultra-soft synthetic material All the seams are lock-stitched for extra strength Machine-washable and shrink-free Cons Tends to run large The glow in the dark feature doesn’t last too long Skylinewears Men’s Unisex Onesie Jumpsuit The Perfect Blend Of Comfort & FashionMixing fashion with comfort, this onesie from Skylinewears is sure to make a statement.Most ComfortableFind on Amazon This unisex jumpsuit defines comfort and style. Available in over 15 varieties of color, the Skylinewears onesie radiates style with its hoodie-like top and non-footed bottoms. With a ribbed cuff and stretchable elastic by the feet, it’s perfect for curling up on the couch or enjoying a stroll around the neighborhood. Pros More fashionable than the average onesie Ribbed cuff and stretchable elastic on bottom Available in over 15 color variations Includes two zipper pockets on the left and right side of the trouser area Cons Issues have been brought up with the sizing chart Fabric is noticeable thin Silver Lilly Unisex Adult Pajamas Animal Onesie Is All Too AdorableThese hooded animal-themed adult pajamas from Silver Lilly exude comfort and fun.Best HoodedFind on Amazon This animal-themed plush onesie is all too fun and adorable. I mean, it’s a onesie that looks like a teddy bear. So it’s not only perfect for your next party but the soft, plush material can also lull you right to sleep. Then there’s the hooded portion, which is like the cherry on top. It features detailed eyes, ears, and even a smile. The fitting for the entire outfit is also loose enough to fit over your existing clothes. Pros Animal-themed, it’s perfect for any pajama party The hooded portion features detailed eyes, ears, and even a smile Loose enough to fit over existing clothes Silver Lilly makes a complete line of animal-themed onesies Comes in a protective vacuum-sealed package designed to reduce materials, waste, fuel, and leave less of a carbon footprint Cons Although loose-fitting, it tends to run on the shorter side Snug around the ankles, so it may prove difficult to slide on and off Forever Lazy Adult Onesies Pajama-Blanket Will Lull You To SleepIdeally suited for sleeping, this pajama onesie will have you eager to jump under the covers or plop down on the couch.Best PajamaFind on Amazon The brand name of this onesie says it all: Forever Lazy. That alone will make you want to jump under the covers or plop down on the couch with a bowl of popcorn and the perfect movie cued up. The high quality, 100% polyester fleece is ultra-soft and can be cleaned simply by tossing it in the washing machine. A feature that adds to the desirability of this onesie is the zipper track that allows you to remove or re-attach the slipper feet. Pros Zipper detachable feet and a rear zipper drop seat Unisex, it’s available in a wide variety of patterns and designs 100% polyester fleece is ultra-soft and anti-pill Comes with a hood and deep side-pockets Cons Shrinks in the wash Tends to run on the larger side Alexander Del Rossa Men’s Warm Fleece Onesie Plushy Comfort For AllWith assorted styles and a built-in hood, this fleece onesie is ideal for the entire family.Best FleeceFind on Amazon Soft and warm, this fashionable adult onesie is made from plush 250 GSM to ensure maximum warmth on the coldest of nights. Adding to the plush feel and coziness is the drawstring hoodie which will keep your ears nice and snug. Making this Alexander Del Rossa onesie even more desirable is the fact that comes in over 15 different style variations. But as we all know, online ordering can be tricky, especially when it comes to sizing. That’s why Del Rossa offers refunds and replacements. Pros Made from plush 250 GSM, this onesie will keep you warm on the coldest of nights Drawstring hood and deep pockets add extra warmth and protection Available in over 15 various styles Perfect for the entire family Easy to clean, just toss it in the washer Cons Sheds quite a bit during the first few washes, adding a decent amount of lint to your dryer Frequently Asked Questions As a child, onesies were most commonly associated with pajamas – is that still the case with these adult onesies? Yes, they can certainly be worn when bundling up under the covers, but these adult onesies are designed for so much more. As kids, we never got the chance to pick out our onesies – we trusted our parents with that decision, for better or worse. But the popularity of adult onesies is rapidly increasing. They’re perfect for any costume themed party, house party, pajama party, or even a karaoke bar outing. And I’m sure, with time, more onesie themed get-togethers will continue to pop up. Some are even comfortable enough to wear under your already existing clothes. Finding the right onesie size for a child seems rather easy, but how does it work for adults, especially when ordering online? You’ll want to pay close attention to the size chart that normally accompanies each brand. Reading the user comments is also extremely helpful, as it will give you a good sense as to what runs large and what runs small. Although most of these onesies come with a hassle-free return policy, it’s no fun to repackage and make an extra trip to the post office. So yes, size chart and user comments are your best bet when it comes to making sure you’re delivered the right size. It’s also beneficial to note whether or not your onesie-of-choice tends to shrink in the wash. Related posts:Powered by SearchIQ The Best Male Dog Diapers Read more The Best Puppy Diapers Read more The Best Dog Shirts Read more