The 10 COZIEST ABDL Onesies of 2020

Onesies are comfortable, easy-to-wear clothing that is no longer reserved just for babies. Why should they be? This all-in-one outfit is ultra cozy, printed with bright, eye-catching designs, and perfect for adult diaper lovers everywhere. Onesies are often the go-to clothing item for lounging around the house or for hosting fun sleepovers, and some can even be worn at costume parties or paired with a cute skirt for public wear. But, onesies are a special clothing item that require detailed consideration. The right fabric type, crotch snap style, and printed design can elevate your ABDL onesie wearing experience! We have compiled some of the best options available on the market.

Read on to discover a few of the cutest onesies to suit your preference. Whether you want the perfect overnight onesie or a cute cosplay style, we have a great set of options for you to check out!

Quick Picks!

Here’s three products we picked out that we thought you might be interested in!

Best Pick
LittleForBig Cosplay Magical Adult Onesie
Available in a wide range of sizes for however big your Little is, these magical cosplay onesies come in multiple colors to suit your fancy – and fantasy. Plus, they’re made form high-quality, comfortable fabrics, so you’ll feel exceptionally comfortable and look exceptionally cute.
Best Pick
LittleForBig Cosplay Magical Adult Onesie
Available in a wide range of sizes for however big your Little is, these magical cosplay onesies come in multiple colors to suit your fancy – and fantasy. Plus, they’re made form high-quality, comfortable fabrics, so you’ll feel exceptionally comfortable and look exceptionally cute.
Best Pick
LittleForBig Cosplay Magical Adult Onesie
Available in a wide range of sizes for however big your Little is, these magical cosplay onesies come in multiple colors to suit your fancy – and fantasy. Plus, they’re made form high-quality, comfortable fabrics, so you’ll feel exceptionally comfortable and look exceptionally cute.
Best Pick
LittleForBig Cosplay Magical Adult Onesie
Available in a wide range of sizes for however big your Little is, these magical cosplay onesies come in multiple colors to suit your fancy – and fantasy. Plus, they’re made form high-quality, comfortable fabrics, so you’ll feel exceptionally comfortable and look exceptionally cute.
Best Pick
LittleForBig Cosplay Magical Adult Onesie
Available in a wide range of sizes for however big your Little is, these magical cosplay onesies come in multiple colors to suit your fancy – and fantasy. Plus, they’re made form high-quality, comfortable fabrics, so you’ll feel exceptionally comfortable and look exceptionally cute.
Best Pick
LittleForBig Cosplay Magical Adult Onesie
Available in a wide range of sizes for however big your Little is, these magical cosplay onesies come in multiple colors to suit your fancy – and fantasy. Plus, they’re made form high-quality, comfortable fabrics, so you’ll feel exceptionally comfortable and look exceptionally cute.
Best Pick
LittleForBig Cosplay Magical Adult Onesie
Available in a wide range of sizes for however big your Little is, these magical cosplay onesies come in multiple colors to suit your fancy – and fantasy. Plus, they’re made form high-quality, comfortable fabrics, so you’ll feel exceptionally comfortable and look exceptionally cute.
Best Pick
LittleForBig Cosplay Magical Adult Onesie
Available in a wide range of sizes for however big your Little is, these magical cosplay onesies come in multiple colors to suit your fancy – and fantasy. Plus, they’re made form high-quality, comfortable fabrics, so you’ll feel exceptionally comfortable and look exceptionally cute.
Best Pick
LittleForBig Cosplay Magical Adult Onesie
Available in a wide range of sizes for however big your Little is, these magical cosplay onesies come in multiple colors to suit your fancy – and fantasy. Plus, they’re made form high-quality, comfortable fabrics, so you’ll feel exceptionally comfortable and look exceptionally cute.
Best Pick
LittleForBig Cosplay Magical Adult Onesie
Available in a wide range of sizes for however big your Little is, these magical cosplay onesies come in multiple colors to suit your fancy – and fantasy. Plus, they’re made form high-quality, comfortable fabrics, so you’ll feel exceptionally comfortable and look exceptionally cute.

Last update on 2020-08-03 / Affiliate links / Images from Amazon Product Advertising API

Best Value
LittleForBig Sweet Reaper Night-Glow Adult Onesie
For when a traditional design won’t cut it, try this freaky, fun, Halloween-inspired onesie. Not only do you get the quality and comfort you expect from LittleForBig products, this fun design even glows in the dark for a little extra spunk and spook.

Last update on 2020-08-03 / Affiliate links / Images from Amazon Product Advertising API

Best Budget
LitteForBig Baseball-Sleeved Dinosaur Adult Onesie
While these are cheaper than other LittleForBig onesies, that only applies to the price tag. They’re made from the same high-quality materials and are designed with a fun dinosaur print that’s sure to make you roar with delight.

Last update on 2020-08-03 / Affiliate links / Images from Amazon Product Advertising API

The BEST ABDL Onesie – Our Picks!

1) Littleforbig ABDL Snap Crotch Romper Onesie Pajamas – Cosplay Magical Onesie Skirt Set – The Best Overall Cosplay ABDL Onesie

This skirt set comes with a front bow and a striped collar, designed to relay a magical cosplay experience. The waistband is adjustable, ensuring the perfect fit, no matter your body type. The fabric is sufficiently thick to support both the weight and bulk of an adult diaper and it has three crotch snaps that make dressing a breeze.

Key Features:

  • Multiple sizes available, ranging from XS to 4XL
  • Thick, high quality fabric
  • 95% cotton, 5% spandex
  • Flattering on many body type
  • Multiple colors available

The many available colors are great for adding variety to your onesie closet and the adjustable fit ensures you will look and feel your best while wearing it. The thick fabric is extra supportive when used in conjunction with adult diapers, even those made of cloth!

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The Pros
  • Adjustable fit
  • Thick material for ultimate comfort and protection
  • Available in a variety of colors
The Cons
  • The skirt may be too short to wear out in public

2)  Littleforbig ABDL Button Crotch Romper Onesie Pajamas-Sleepytime Pattern – The Best Sleepover ABDL Onesie

The print on this onesie features clouds, stars, and crescent moons, offering a distinct aesthetic appeal reminiscent of babywear. This onesie is created especially for adults who are looking for little clothing that fits! It is made of cotton and spandex, offering a comfortable, snug fit that looks and feels cozy.

Key Features:

  • Front snaps and crotch snaps for easy dressing
  • Thick, high quality fabric
  • Designed to fit snugly against the body
  • Vibrant print
  • Supportive and comfortable

This onesie offers plenty of support if you choose to wear a diaper underneath. There are three press snaps in the crotch area, making diaper changes easy. With the snug fit, you will feel secure throughout the night, whether you are pillow fighting or cuddling to wind down and rest.

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The Pros
  • 95% cotton, 5% spandex for ultimate comfort
  • Soft on the skin and stretchy to support multiple body types
  • Cute print like those found on baby onesies
The Cons
  • You may need to size up, especially if you are top heavy

3)  Littleforbig ABDL Button Crotch Romper Onesie – Halloween – The Best Halloween ABDL Onesie

This fun Halloween onesie is perfect for your favorite dress-up holiday and can also be the ideal outfit for a night of spooky movies. These onesies are made of high quality fabric that fits any body size, from XS to 4XL. The Peter Pan collar adds a unique touch to this onesie that invites comfort when wearing out in public.

Key Features:

  • 95% cotton, 5% spandex for optimal comfort
  • Thick fabric to support the weight of diapers
  • Cute design meant to inspire little feelings

This onesie has a row of three crotch snaps that make diaper changes easy. The print includes ghosts, black cats, and candies – all black and white. Some customers have taken this onesie to the next level and customized it with fabric markers, adding a punch of color to the design. It is a versatile piece that you can make your own.

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The Pros
  • Multiple sizes available to fit your body type
  • Peter Pan collar for versatile wearing
  • Thick, durable fabric
The Cons
  • Some customers reported a tight fit in the arm area

4)  TEN@NIGHT ABDL Onesie Unicorn Snap Crotch Pajamas for Women –The Best Unicorn Print ABDL Onesie

This cute unicorn print onesie is made with high quality cotton and non-polluting dye – it is safe against the skin and the little rainbows, unicorns, and happy clouds will not fade over time. It has four crotch snaps to make dressing and changing easy and is super supportive for diaper wear, even for cloth diapers.

Key Features:

  • 95% polyester, 5% spandex to ensure a snug fit
  • Bright, colorful pattern
  • Supportive for diaper wear
  • Delivered with discreet packaging

The bright pattern of this onesie invites the wonderment of childhood into your life. It can be worn with skirts or alone, depending on your preference. When you order, you will receive a discreet package. Only you will know the special surprise and excitement that awaits you when you open the package and wear this colorful design.

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The Pros
  • Adorable design available in multiple sizes
  • Four crotch snaps for your ease
  • Comfortable fabric and fit
The Cons
  • Sizing may run a little bit small

5)  Littleforbig ABDL Button Crotch Romper Onesie Pajamas – I Love Daddy Pattern – The Best Budget ABDL Onesie

This “I Love Daddy” onesie is designed to make you look as tiny as you feel. It is made with cotton and spandex to offer comfort and a little stretch for comfortable movements. There is a row of three press snaps at the crotch that are meant to provide ultimate support for diapers.

Key Features:

  • Thick, high quality fabric
  • Vibrant colors
  • Stretchy to fit different body types
  • Easy dressing and optimal diaper support

This white onesie offers a snug fit with a print that announces your love for daddy with a bright red, pink, or purple heart. It comes in multiple sizes, making sure you get the most comfortable and secure fit. It is an affordable product that satisfies your onesie wearing needs.

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The Pros
  • Available in multiple colors
  • Large size range to accommodate all body types
  • No loose-fitting sacks
The Cons
  • Snaps require a gentle touch for long-term use

6) Littleforbig ABDL Button Crotch Romper Onesie – Baby Gamer Onesie

If you’re into video games, then this product should be at the very top of your shortlist. The stunning black background contrasts with the pastel pink and baby blue gaming pattern (that includes retro controllers, consoles, and space invaders), giving it a cute, adorable look that we’re sure many of you will love.

Key Features

  • 2 Shoulder Snaps
  • 3 Crotch Snaps
  • Suitable for diapers (including cloth diapers)
  • Available in 8 sizes

The material this onesie is made from is thick and of a high quality, and it’s suitable for diapers (both cloth and disposable). It’s easy to put on thanks to the 2 shoulder snaps and 3 crotch snaps (and it’s very secure too) which makes it a practical yet adorable addition to your ABDL wardrobe.

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The Pros
  • Looks like a real baby onesie with the cute pattern
  • High-quality materials
  • No issues with loose-fitting sacks
The Cons
  • Maybe not the best choice if you’re not into gaming

7) Littleforbig ABDL Button Crotch Romper Onesie Bodysuit – Bunnywatch

This onesie has a little bit of an edge to it with its slightly provocative “GAME OVER” message across the chest area (and the hilarious “NERF THIS” message on the rear). The stunning pink shoulders complement the light blue front (and black sides) of the onesie, giving it a look that’s cute yet modern.

Key Features

  • Vibrant Print
  • 3 Crotch Snaps
  • Various Sizes Available

The material it’s made from is thick and soft (a 95% cotton and 5% spandex blend), and the stretchiness ensures a snug tight fit to the body. It has a classic collar design, and there are 3 crotch snaps to make getting dressed easy and provide a secure fit every time.

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The Pros
  • Looks adorable
  • Great for people with a little attitude
  • Super comfortable
  • Diaper compatible
The Cons
  • Might be a little too much attitude in the text for some people’s tastes.

8) Littleforbig ABDL Button Crotch Romper Onesie – Dinosaurs Baseball Reglan Sleeves

Who doesn’t love dinosaurs! This product features a classically cute combination of white and black fabric that has various dinosaurs printed onto the white sections in black, blue, and pink.

Key Features

  • Baseball style Reglan sleeves
  • Dino print pattern
  • 3 Crotch snaps
  • Diaper compatible
  • Various sizes available

We love the slightly longer baseball Reglan sleeves on this product, it gives the onesie a distinct look (and it helps keep the wearer at a lower temperature according to the manufacturer). The material is thick and soft, and is made from 95% cotton and 5% spandex like many of the other products on this page (which again ensures a snug fit without sagging).

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The Pros
  • Reglan sleeves look great
  • Dinosaur print
  • Well made from thick material
  • Great price
The Cons
  • None.

9) Littleforbig ABDL Snap Crotch Onesie Bodysuit – Trick Treat Night-Glow Halloween Onesie

If you’re looking for something a little “flashy” then check out this glow in the dark hooded onesie. Despite the print showing all manner of spooky Halloween themed things, it’s a cute product that looks adorable when worn. The black background with the pastel-colored yellow, pink and grey print will look great in the day, but as the name suggests, turn off the lights, and the spooky pattern will glow in the dark.

Key Features

  • Spooky glow in the dark Halloween print
  • Soft hooded section
  • 3 Secure crotch buttons
  • 95% cotton, 5% spandex

The pattern continues over the hood of the onesie, and there’s a clean white edge around the cuffs of the sleeve (and the edge of the hood) which adds a little contrast and makes the pattern really “pop.

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The Pros
  • Very soft and comfortable
  • Thick high-quality material
  • Glows in the dark
  • Awesome hood
The Cons
  • Some reviews report that the onesie fades quickly

10) Littleforbig Adult Baby Diaper Lover (ABDL) Button Crotch Onesie – Sweet Reaper Night-Glow Halloween

We love the spooky (glow in the dark) skeleton design on the front of this onesie with the stomach contents of sweets and treats hilariously in view. It has 3 crotch buttons that make dressing easy, while providing a secure fit at the same time.

Key Features

  • Soft black fabric
  • Skeleton pattern
  • 3 Crotch buttons
  • Diaper compatible
  • Hood with glow in the dark motif

The hood on this product contains a cute little skull motif on It that also glows in the dark, and while this is a product that is marketed as a onesie for Halloween, we can see why some reviewers choose to wear it all year round.

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The Pros
  • High-quality material
  • Very comfortable
  • No Sagging
  • Glows in the dark
  • Hooded product
The Cons
  • Larger sizes run a little small according to some reviewers

Choosing the BEST ABDL Onesie – Our Buying Guide!

A) Easy Wear and Easy Changing

When choosing your onesie, make sure it is comfortable. These pieces are meant to make you feel cute and cozy. With onesies, you don’t have to be concerned with wearing two pieces and finding a top and bottom that match. All you need to do is slip it on and ensure it has the appropriate crotch snaps for a diaper-wearing lifestyle.

B) Ensure Optimal Comfort

A onesie that you can sleep in should offer a snug fit that doesn’t shift around as you move throughout the night. The length should be appropriate according to your height to avoid discomfort and ensure appropriate space for your diaper, should you choose to wear one for overnight protection.

C) Choose a Design That Makes You Feel Good

There are so many designs to choose from! Some can be worn out in public comfortably when paired with matching bottoms. Others have a special written message to enhance your time while wearing them and still others have bright patterns that make you feel as little as you want!

The BEST ABDL Onesie – Frequently Asked Questions

1) Are ABDL onesies affordable?

Yes! It is important to consider quality though. There are some options available that are ultra-cheap, but they may not be of sufficient quality for long-term use. Therefore, you may prefer to consider spending just a little bit more to ensure you will be able to enjoy your onesie for years to come!

2) When can I wear an ABDL onesie?

Anytime your heart desires! Some styles are easier to wear out in public without being too revealing and some are meant more for nighttime wear. Ultimately, if you want to live in onesies year-round, you are free to!

Picking the BEST ABDL Onesie - How to Make the Right Selection

Your onesie shopping experience should be just as exciting as your onesie wearing experience! This guide has provided a great list of the top onesies commercially available and each has a distinct feature that makes it special and exhilarating to wear. Whatever your preferred style, there is a onesie for you. The best part is how size-inclusive onesies are, they fit multiple body styles comfortably and in a flattering way. When you choose the right onesie for you, you will feel a snug hug from the fabric and will get to enjoy a lifestyle that brings you comfy fun!

Alright, what are you waiting for? Get out there and start shopping!

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