Underwear

Soft, breathable underwear designed for all-day comfort and a perfect fit.

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23 products

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GIRLS BRIEF UNDERWEAR SET - FALL FOLIAGE - The Sleepy SlothGIRLS BRIEF UNDERWEAR SET - FALL FOLIAGE - The Sleepy Sloth
FALL FOLIAGE
GIRLS BRIEF UNDERWEAR SET Sale price$20.00
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BOYS BOXER UNDERWEAR SET - RETRO SAURUS REX - The Sleepy SlothBOYS BOXER UNDERWEAR SET - RETRO SAURUS REX - The Sleepy Sloth
RETRO SAURUS REX
BOYS BOXER UNDERWEAR SET Sale price$8.00 Regular price$20.00
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GIRLS BRIEF UNDERWEAR SET - PREHISTORIC - The Sleepy SlothGIRLS BRIEF UNDERWEAR SET - PREHISTORIC - The Sleepy Sloth
PREHISTORIC
GIRLS BRIEF UNDERWEAR SET Sale price$8.00 Regular price$20.00
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BOYS BOXER UNDERWEAR SET - D IS FOR DOG - The Sleepy SlothBOYS BOXER UNDERWEAR SET - D IS FOR DOG - The Sleepy Sloth
D IS FOR DOG
BOYS BOXER UNDERWEAR SET Sale price$8.00 Regular price$20.00
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GIRLS BRIEF UNDERWEAR SET - D IS FOR DOG - The Sleepy SlothGIRLS BRIEF UNDERWEAR SET - D IS FOR DOG - The Sleepy Sloth
D IS FOR DOG
GIRLS BRIEF UNDERWEAR SET Sale price$8.00 Regular price$20.00
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GIRLS BRIEF UNDERWEAR SET - SALEM - The Sleepy SlothGIRLS BRIEF UNDERWEAR SET - SALEM - The Sleepy Sloth
SALEM
GIRLS BRIEF UNDERWEAR SET Sale price$16.00 Regular price$20.00
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BOYS BOXER UNDERWEAR SET - CHOCOHOLIC - The Sleepy SlothBOYS BOXER UNDERWEAR SET - CHOCOHOLIC - The Sleepy Sloth
CHOCOHOLIC
BOYS BOXER UNDERWEAR SET Sale price$8.00 Regular price$20.00
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GIRLS BRIEF UNDERWEAR SET - BERRYLICIOUS - The Sleepy SlothGIRLS BRIEF UNDERWEAR SET - BERRYLICIOUS - The Sleepy Sloth
BERRYLICIOUS
GIRLS BRIEF UNDERWEAR SET Sale price$8.00 Regular price$20.00
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GIRLS BRIEF UNDERWEAR SET - COSMIC CHAOS - The Sleepy SlothGIRLS BRIEF UNDERWEAR SET - COSMIC CHAOS - The Sleepy Sloth
COSMIC CHAOS
GIRLS BRIEF UNDERWEAR SET Sale price$8.00 Regular price$20.00
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BOY'S BOXER UNDERWEAR SET - SPACED OUT - The Sleepy SlothBOY'S BOXER UNDERWEAR SET - SPACED OUT - The Sleepy Sloth
SPACED OUT
BOY'S BOXER UNDERWEAR SET Sale price$20.00
BOYS BOXER UNDERWEAR SET - KA - POW! - The Sleepy SlothBOYS BOXER UNDERWEAR SET - KA - POW! - The Sleepy Sloth
KA POW!
BOYS BOXER UNDERWEAR SET Sale price$20.00
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GIRLS BRIEF UNDERWEAR SET - DRAGONFLIES - The Sleepy SlothGIRLS BRIEF UNDERWEAR SET - DRAGONFLIES - The Sleepy Sloth
DRAGONFLIES
GIRLS BRIEF UNDERWEAR SET Sale price$12.00 Regular price$20.00
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GIRLS BRIEF UNDERWEAR SET - GLOW WITH THE FLOW - The Sleepy SlothGIRLS BRIEF UNDERWEAR SET - GLOW WITH THE FLOW - The Sleepy Sloth
GLOW WITH THE FLOW
GIRLS BRIEF UNDERWEAR SET Sale price$20.00
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GIRLS BRIEF UNDERWEAR SET - LUNAR BLOSSOM - The Sleepy SlothGIRLS BRIEF UNDERWEAR SET - LUNAR BLOSSOM - The Sleepy Sloth
LUNAR BLOSSOM
GIRLS BRIEF UNDERWEAR SET Sale price$20.00
GIRLS BRIEF UNDERWEAR SET - SPACED OUT - The Sleepy SlothGIRLS BRIEF UNDERWEAR SET - SPACED OUT - The Sleepy Sloth
SPACED OUT
GIRLS BRIEF UNDERWEAR SET Sale price$20.00
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GIRLS BRIEF UNDERWEAR SET - WILDFLOWER DREAMS - The Sleepy SlothGIRLS BRIEF UNDERWEAR SET - WILDFLOWER DREAMS - The Sleepy Sloth
WILDFLOWER DREAMS
GIRLS BRIEF UNDERWEAR SET Sale price$16.00 Regular price$20.00
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BOYS BOXER UNDERWEAR SET - RESCUE WOOFS - The Sleepy SlothBOYS BOXER UNDERWEAR SET - RESCUE WOOFS - The Sleepy Sloth
RESCUE WOOFS
BOYS BOXER BRIEF UNDERWEAR SET Sale price$20.00
BOYS BOXER UNDERWEAR SET - MISTY MOUNTAINS - The Sleepy SlothBOYS BOXER UNDERWEAR SET - MISTY MOUNTAINS - The Sleepy Sloth
MISTY MOUNTAINS
BOYS BOXER UNDERWEAR SET Sale price$20.00
GIRLS BRIEF UNDERWEAR SET - PENELOPE’S PETALS - The Sleepy SlothGIRLS BRIEF UNDERWEAR SET - PENELOPE’S PETALS - The Sleepy Sloth
PENELOPES PETALS
GIRLS BRIEF UNDERWEAR SET Sale price$20.00
GIRLS BRIEF UNDERWEAR SET* - SEAHORSIN' AROUND - The Sleepy SlothGIRLS BRIEF UNDERWEAR SET* - SEAHORSIN' AROUND - The Sleepy Sloth
SEAHORSIN AROUND
GIRLS BRIEF UNDERWEAR SET Sale price$20.00
BOYS BOXER BRIEF UNDERWEAR SET* - SEA COW - The Sleepy SlothBOYS BOXER BRIEF UNDERWEAR SET* - SEA COW - The Sleepy Sloth
SEA COW
BOYS BOXER BRIEF UNDERWEAR SET Sale price$20.00
Boys Boxer Brief Underwear Set - CELESTIAL MOTHS - The Sleepy SlothBoys Boxer Brief Underwear Set - CELESTIAL MOTHS - The Sleepy Sloth
CELESTIAL MOTHS
BOYS BOXER BRIEF UNDERWEAR SET Sale price$20.00
Girls Brief Underwear Set - CELESTIAL MOTHS - The Sleepy SlothGirls Brief Underwear Set - CELESTIAL MOTHS - The Sleepy Sloth
CELESTIAL MOTHS
GIRLS BRIEF UNDERWEAR SET Sale price$20.00

About The Underwear

When it comes to children's bamboo underwear, they need to feel comfortable, and we have combined softness, breathability, and playfulness to make your little one happy all day. These undies are designed for an active toddler and have adorable patterns that make dressing up much fun. They feature boxers and brief underwear sets, making them suitable for boys and girls.

Our toddler underwear is made from the finest breathable cotton, stretchy enough to hug your toddler snugly and flexibly. It is also great for potty training or just the comfort of everyday use. The waistband is extremely soft and gentle to the skin, with no pinching or irritation, while leg openings are cut securely for unrestrained movement.

Why Choose The Sleepy Sloth Underwear Collection? 

1. Comfortable, Flexible Fit for Active Toddlers

Our bamboo spandex blend toddler underwear are designed for growing kids on the move. The stretchy, breathable fabric offers a snug yet flexible fit, while the soft waistband sits comfortably on the waist without pinching. Elastic leg openings let your toddler crawl, climb, and play freely.


2. Gentle on Sensitive Skin

Made from eco-friendly bamboo fabric, these pairs of underwear are hypoallergenic, breathable, and free from harsh chemicals or dyes. They’re perfect for all-day wear—even for toddlers with sensitive skin or eczema.


3. Perfect for Potty Training Success

The easy pull-on style and flexible fit make our bamboo toddler underwear ideal for potty training. Your little one can confidently transition from diapers to big-kid underwear, building independence while staying comfortable.


4. Durable and Long-Lasting Quality

Parents love how The Sleepy Sloth underwear are built to last. Strong stitching and vibrant, fade-resistant prints hold up through countless washes—keeping your child’s underwear soft and comfy wear after wear.


5. Fun and Stylish Designs for Every Personality

Our collection features a wide variety of playful patterns and colors to match every child’s unique style. Whether you’re shopping for classic neutrals or bright, cheerful designs, there’s a perfect pair for every toddler.