Boys Colourful Dinos Cotton Pajama Set

$45.00

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Colors

View Kids Holiday Decorations Cotton Pajama Set Cream striped swatch with colorful holiday motifs and teal zigzag trim

View Boys Vintage Trucks Cotton Pajama Set Blue swatch with scattered vintage pickup trucks in yellow and gray

View Boys Colourful Dinos Cotton Pajama Set Blue swatch with colorful dinosaur silhouettes

View Boys Outdoor Explorer Cotton Pajama Set White swatch with colorful camping and fishing icons, including fish, lanterns, a map, and a backpack

View Boys Blue Nutcracker Cotton Pajama Set Blue swatch with colorful nutcracker and Christmas motifs

Size

Size Chart

Finding the right size

To get an accurate body measurement, do not measure over clothing.

Chest: With your child's arms out, measure around the fullest part of the chest.
Waist: Measure around the natural waistline.
Hip: Measure around the fullest part of the hips and seat.
Height: Measure from the top of the head to the ground, without shoes.

When purchasing kid's pajamas, we recommend buying a size up from the age of the child (example: a four-year-old would take a size 5).

Baby

The first column has the US/UK size, the second column has the corresponding EU size, the third column has the weight associated to that size and the fourth column has the length
US / UK	WEIGHT	LENGTH
Up to 5lbs	Up to 5lbs Up to 2.3kg	Up to 17.00" Up to 43cm
Up to 7lbs	Up to 7lbs 2.3 - 3.2kg	Up to 18" Up to 46cm
0-3m	7 - 12lbs 3 - 5.4kg	18.00" - 22.75" 46cm - 58cm
3-6m	12 - 16lbs 5.4 - 7.3kg	22.75" - 26.75" 58cm - 68cm
6-9m	16 - 21lbs 7.3 - 9.5kg	26.75" - 28.00" 68cm - 71cm
6-12m	17 - 25lbs 7.7 - 11.3kg	26.75" - 29.25" 68cm - 74cm
9-12m	21 - 25lbs 9.5 - 11.3kg	28.00" - 29.25" 71cm - 74cm
12-18m	25 - 27lbs 11.3 - 12.2kg	29.25" - 31.00" 74cm - 79cm
18-24m	27 - 30lbs 12.2 - 13.6kg	31.00" - 33.00" 79cm - 84cm

Toddler

The first column has the US/UK size, the second column has the weight associated to that size and the third column has the length
US / UK	WEIGHT	LENGTH
2T	30 - 33lbs 13.6 - 15kg	33.00" - 35.75" 84cm - 91cm
3T	33 - 36lbs 15 - 16.3kg	35.75" - 39.00" 91cm - 99cm
4T	36 - 39lbs 16.3 - 17.7kg	39.00" - 41.75" 99cm - 106cm

Kids

The first column has the US/UK size, the second column has the corresponding EU size, the third column has the chest measurement associated to that size, the fourth column has the waist measurement, the fifth has the hips measurement, and the sixth has the height measurement
US/UK	EU	CHEST	WAIST	HIPS	HEIGHT
2	89	21.0" 53cm	20.5" 52cm	21.0" 53cm	35.0" 89cm
3	98	22.0" 56cm	21.0" 53cm	22.0" 56cm	38.50" 98cm
4	104	23.0" 58cm	21.5" 55cm	23.0" 58cm	41.0" 104cm
5	110	24.0" 61cm	22.0" 56cm	24.0" 61cm	43.25" 110cm
6	116	25.0" 64cm	22.5" 57cm	25.0" 64cm	45.75" 116cm
7	122	26.0" 66cm	23.0" 58cm	26.0" 66cm	48.0" 122cm
8	128	27.0" 69cm	23.5" 60cm	28.0" 71cm	50.25" 128cm
10/9-10	134-140	28.5" 72cm	24.5" 62cm	29.0" 74cm	52.75" - 55.00" 134cm - 140cm
12/11-12	146-152	30.0" 76cm	25.5" 65cm	31.0" 79cm	57.50" - 60.00" 146cm - 152cm
14	155-160	31.5" 80cm	26.5" 67cm	32.5" 83cm	61.0" - 63.0" 155cm - 160cm

Kids' Rain Boots

The first column has the US size, the second column has the corresponding UK size, the third column has the corresponding EU size, the fourth column has the age associated to that size and the fifth column has the insole length
US	UK	EU	AGE	INSOLE LENGTH
4 Toddler	3 Toddler	20	1 - 2	5.5" 140mm
5 Toddler	4 Toddler	21	1.5 - 2	5.7" 145mm
6 Toddler	5 Toddler	22	2 - 3	6" 152mm
7 Toddler	6 Toddler	23	2.5 - 4	6.25" 159mm
8 Toddler	7 Toddler	24	3.5 - 5	6.54" 166m
9 Toddler	8 Toddler	25	4.5 - 5	6.8" 173mm
10 Toddler	9 Toddler	27	5 - 6	7.1" 180mm
11 Kids	10 Kids	28	5.5 - 7.5	7.36" 187mm
12 Kids	11 Kids	30	6 - 7.5	7.64" 194mm
13 Kids	12 Kids	31	7 - 8	8" 204mm
1 Kids	13 Kids	32	7.5 - 8.5	8.4" 213mm
2 Kids	1 Kids	33	8.5 - 9.5	8.66" 220mm
3 Kids	2 Kids	34	8-10	8.94" 227mm
4 Kids	3 Kids	36	10-12	9.22" 234mm

Kids' Flip Flops

The first column has the US/UK size, the second column has the corresponding EU size, the third column has the age associated to that size and the fourth column has the insole length
US/UK	EU	AGE	INSOLE LENGTH
S (Size 7)	24	2.5 - 4	6.25" 160mm
M (Size 9)	26	4.5 - 5	6.75" 170mm
L (Size 11)	29	5.5 - 7.5	7" 180mm
XL (Size 13)	31	7 - 8	7.75" 195mm

Kids' Slippers

The first column has the US/UK size, the second column has the age associated to that size and the third column has the insole length
US/UK	AGE	INSOLE LENGTH
S (Size 5-7)	2.5 - 4	6.75" 173mm
M (Size 8-10)	4.5 - 5	7" 180mm
L (Size 11-13)	5.5 - 7.5	7.25" 185mm
XL (Size 1-2)	7 - 8	7.5" 193mm

Kids' Robes

As our kids' robes are unisex, sizing is based on a boy’s average proportions (it has to fit him too!) To select the right size for a girl, choose one size smaller than normal. Ex: if she normally wears medium, select a small.

The first column has the US/UK size, the second column has the chest measurement associated to that size, the third column has the waist measurement, the fourth has the hips measurement, and the fifth has the height measurement
US/UK	CHEST	WAIST	HIPS	HEIGHT
2 S (AGES 2-3)	21.0" 53cm	20.5" 52cm	21.0" 53cm	35.0" 89cm
3 S (AGES 2-3)	22.0" 56cm	21.0" 53cm	22.0" 56cm	38.0" 97cm
4 M (AGES 4-5)	23.0" 58cm	21.5" 55cm	23.0" 58cm	41.0" 104cm
5 M (AGES 4-5)	24.0" 61cm	22.0" 56cm	24.0" 61cm	44.0" 112cm
6 L (AGES 6-7)	25.0" 64cm	22.5" 57cm	25.0" 64cm	47.0" 119cm
7 L (AGES 6-7)	26.0" 66cm	23.0" 58cm	26.0" 66cm	50.0" 127cm
8 XL (AGES 8-9)	27.0" 69cm	23.5" 60cm	28.0" 71cm	53.0" 135cm
10 XL (AGES 8-9)	28.5" 72cm	24.5" 62cm	29.0" 74cm	56.0" 142cm

Adult Union Suits

As our adult union suits are unisex, sizing is based on a man’s average proportions (it has to fit him too!) To select the right size for a woman, choose one size smaller than normal. Ex: if she normally wears medium, select a small.

The first column has the size, the second column has the chest measurement associated to that size, the third column has the waist measurement, and the fourth has the suggested height for that size
SIZE	CHEST	WAIST	SUGGESTED HEIGHT
XS	32" - 34" 81cm - 86cm	28" - 30" 71cm -76cm	5' - 5'2" 152cm - 157cm
S	34" - 36" 86cm - 91cm	30" - 32" 76cm - 81cm	5'2" - 5'6" 157cm - 168cm
M	38" - 40" 97cm - 102cm	32" - 33" 81cm - 84cm	5'6" - 5'9" 168cm - 175cm
L	42" - 44" 107cm - 112cm	33" - 34" 84cm - 86cm	5'9" - 6' 175cm - 183cm
XL	46" - 47" 117cm - 119cm	36" - 38" 91cm - 96cm	5'11" - 6'2" 180cm - 188cm

Women

The first column has the US/CAN size, the second column has the corresponding UK size, the third column has the corresponding EU size, the fourth column has the bust measurements associated to that size, the fifth has the waist measurements associated to that size and the sixth column has the hip measurement
SIZES			BODY MEASUREMENTS
US/Can	UK	Europe	Bust	Waist	Hip
2 (XS)	6	34	33 1/2" 85cm	25 1/2" 65cm	36 1/2" 93cm
4 (S)	8	36	34 1/2" 88cm	26 1/2" 67cm	37 1/2" 95cm
6 (S)	10	38	35 1/2" 90cm	27 1/2" 70cm	38 1/2" 98cm
8 (M)	12	40	36 1/2" 93cm	28 1/2" 72cm	39 1/2" 100cm
10 (M)	14	42	37 1/2" 95cm	29 1/2" 75cm	40 1/2" 103cm
12 (L)	16	44	39" 99cm	31" 79cm	41 3/4" 106cm
14 (L)	18	46	40 1/2" 103cm	32 1/2" 83cm	43" 109cm
16 (XL)	20	48	42 1/4" 107cm	34 1/2" 88cm	44 3/4" 114cm
18 (XL)	22	50	44" 112cm	36" 91cm	46 3/4" 119cm
20 (XXL)	24	52	45 3/4" 116cm	37 3/4" 96cm	48 3/4" 124cm

Womens' Flip Flops

The first column has the US size, the second column has the corresponding UK size, and the third column has the corresponding EU size
US	UK	EU
6	4	37
7	5	38
8	6	39
9	7	40
10	8	41

Womens' Slippers

The first column has the size, the second column has the corresponding US size, the third column has the corresponding UK size, and the fourth has the corresponding EU size
Size	US	UK	EU
S	5-6	3-4	36-37
M	7-8	5-6	38-39
L	9-10	7-8	40-41
XL	11-12	9-10	42-43

Men

The first column has the size, the second column has the chest measurement associated to that size, and the third column has the waist measurement
SIZE	CHEST	WAIST
S	34" - 36" 86cm - 91cm	30" - 32" 76cm - 81cm
M	38" - 40" 97cm - 102cm	32" - 33" 81cm - 84cm
L	42" - 44" 107cm - 112cm	33" - 34" 84cm - 86cm
XL	46" - 47" 117cm - 119cm	36" - 38" 91cm - 96cm
XXL	48" - 50" 122cm - 127cm	40" - 42" 102cm -107cm

Dogs

The first column has the size, the second column has the chest measurement associated to that size, the third column has the back length measurement, and the fourth column has examples of breeds the size should fit
SIZE	CHEST	BACK LENGTH	BREED
XS	11" - 14" 28cm - 35.5cm	9" - 10" 23cm - 25.5cm	Yorkshire Terrier, Chihuahua
S	15" - 18" 38cm - 45.5cm	11" - 13" 28cm - 33cm	Shih Tzu, Miniature Schnauzer
M	19" - 24" 48cm - 61cm	14" - 18" 35.5cm - 45.5cm	Beagle, Cocker Spaniel
L	25" - 28" 63.5cm - 71cm	19" - 21" 48.5cm - 53.5cm	German Shorthaired Pointer, Boxer
XL	29" - 34" 73.5cm - 86.5cm	22" - 25" 55.5cm - 63.5cm	Labrador, Golden Retriever, Doberman Pinscher

Kombi Gloves and Mitts for Children (2 - 6 years)

Size	Age	Hand Circumference at Knuckles	Hand Length
S	2/3	11.1 - 12.5cm	10 - 11.2cm
M	4/5	12.5 - 13.5cm	11.2 - 12cm
L	5/6	13.5 - 14.5cm	12 - 12.8cm

Kombi Gloves and Mitts for Juniors (6 - 14 years)

Size	Age	Hand Circumference at Knuckles	Hand Length
XS	6/7	14.5 - 15.2cm	12.8 - 13.7cm
S	7/8	15.2 - 15.9cm	13.7 - 14.6cm
M	9/10	15.9 - 16.6cm	14.6 - 15.5cm
L	11/12	16.6 - 17.2cm	15.5 - 16.4cm
XL	13/14	17.2 - 17.8cm	16.4 - 17.3cm
S/M	3/5X	11.8 - 13cm	10.6 - 11.6cm
L/XL	5/6X	14 - 15cm	12.4 - 13.5cm

Kombi Headwear (6 to 24 months)

Age	Head Circumference
0 - 3m	30.5 - 35.5cm
3 - 9m	35.5 - 45.5cm
9 - 18m	45.5 - 46.5cm
18 - 24m	46.5 - 48.75cm

2Y 3Y 4Y 5Y 6Y 7Y 8Y 10Y 12Y

Product variants

Quantity

Features

Comfortable stretchy elastic waistband
Fun contrast trim at neck and cuffs
OCS Certified - CU11646OCS
Machine washable - easy care for busy parents
Snug-fit sleepwear meets safety standards

100% Cotton.

Product code: F26CDK204O

Shipping

All US orders ship from our Montreal, QC warehouse. We ship all orders within 2 business days.

Shipping Policy & Rates

UPS Express Saver

Under $99 $9

$99+ Free

Estimated delivery: Approx. 2–3 business days

^*Delivery time is the estimated transit time after your order leaves our facility. We aim to ship all orders within 2 business days.

You can see a detailed breakdown of the shipping times by region here.

Returns & Exchanges

Return Window
You have 30 days from the date of delivery to initiate a return.

Refund Method (Online Orders)
If you purchased your item online, refunds will be issued to the original payment method used at checkout.

Online Purchases

Returns: You can return items either online or in-store.
Exchanges: To exchange an online purchase, please return the original item and place a new order.

In-Store Purchases
In-store purchases can only be returned or exchanged at a store location.

Please note that items labeled "Final Sale" are non-returnable.

For detailed return procedures and additional information, please refer to our Returns and Exchanges page.

View full details

Bedtime just got a whole lot more prehistoric. This cozy two-piece set is covered in a colourful mix of dinosaurs on a navy ground, with teal ribbed cuffs and neckline for a cheerful finishing touch. Made from 100% organically grown cotton with a comfortable elasticized waistband, it's soft enough for little ones to wear night after night and built well enough to pass down when they're done.

FAQs

Is this pajama set easy to get on and off?

Yes, this is a pull-on set with no zippers or snaps to fuss with, so it slips over the head easily and pulls up at the waist. The stretchy ribbed neckline gives just enough room to get past little heads without a struggle. The pants have a comfortable elastic waistband that pulls right on.

Is this pajama set snug-fitting?

Yes, this set is designed to fit close to the body rather than loose and roomy. When you're choosing a size, keep in mind that it's meant to sit snugly against your child, so there won't be extra fabric bunching up while they sleep or play.

Will this feel soft against my child's skin?

It's made from cotton, so it's gentle and breathable against sensitive skin, which is exactly what you want for a good night's sleep. The neckline and the cuffs at the wrists and ankles have a soft ribbed finish that stays comfortable without digging in. A smooth inner patch at the back neck keeps the tag area from scratching.

Does this set have ribbed cuffs?

Yes, there are soft ribbed cuffs at both the wrists and the ankles, plus a ribbed trim around the neckline. These help keep the sleeves and pant legs in place so they don't ride up while your child sleeps or wriggles around.

How should I wash this pajama set?

Since it's cotton, a gentle cold wash and a low-heat tumble dry will help it hold its shape and softness through lots of bedtimes. Washing in cool water also helps keep the colors looking fresh over time. Always follow the care label sewn into the garment for the most accurate guidance.

Overall rating: 4.8012347 / 5 from 810 reviews.

AI Generated Review Summary

The Colorful Dinos Cotton Rib Pajama Set is highly praised for its adorable print, excellent quality, and soft fabric. Customers appreciate the cute design and beautiful colors, although some find the patterns too much. The fit is generally well-received, but opinions on size vary.

Summary topics

product quality (37%): Many customers expressed satisfaction with the excellent quality of the product, which was mentioned multiple times in the reviews.
appearance (7%): Customers keep praising the great look of the product, with multiple reviews mentioning how amazing it looks.
adornment (8%): Customers expressed appreciation for the adorable and great quality of the print, which was mentioned multiple times in the reviews.
comfort (15%): A significant amount of customers expressed satisfaction with the cute and soft pjs, praising their softness and quality.
material quality (9%): Customers expressed satisfaction with the lovely and beautiful quality of the fabric, which was mentioned multiple times in the reviews.

Review topics: ["feel","quality","fit","colours","design","fabric","looks","pjs","size","pattern","material","pajamas","comfort","length","shape","cotton","skin","style","construction","print","comfy","thickness","softness","shipping","christmas","arms","weather","service","waist","boy"].

Review highlights

"They are a snug fit, the fabric is so soft and the design is so great." — Jessica B.
"Nice fit, great colours, good quality" — Sherry K.
"Nice quality, colors and fabric." — Alejandra A.

Reviews

Skaters pjs

"Very happy with product and service. Delivery was fast and easy. Will purchase from you again . As this is a gift I cannot verify fit but it looks big enough"

— Barbara S. (5/5)

Adorable design and great quality

"Purchase these pj every early in different fun designs and sizes. Perfect and comfy gift for the little ones."

— Rose M. (5/5)

Great quality

"Love the quality and patterns of these fun pjs. They wash beautifully."

— Mary D. (5/5)

Love the print

"My toddler recently developed a love for all things ducks. To my surprise I find this duck print PJ at Hatley - it was a must-buy. I can always count on great quality fabrics at Hatley/Little Blue House. I always have to buy one size up in this brand for my toddler who has been 50th percentile so far."

— Anna (5/5)

Very cosy pyjamas. My daughter

"Very cosy pyjamas. My daughter loves them."

— Tracey (5/5)

Our son loves this design!

"Great colours too!"

— Curt H. (5/5)

Such fun summer patterns

"Hatley is my go-to pj brand for my kids. I also like to gift them to family and friends. The quality is always exceptional, and I love all of the cute patterns."

— Laura (5/5)

Great PJs

"These pyjamas are soft and thick - fit great and will last a while."

— Erin F. (5/5)

My 3 year old loves these!

"If there is something to buy brand new, it's Jammies! My son is all about trains and airplanes right now. So I couldn't resist ♡"

— Chantel L. (5/5)

Lovely fit & great quality

"Probably the best pyjamas. Great fit, cute prints, very comfy material."

— Magdalena K. (5/5)

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Boys Colourful Dinos Cotton Pajama Set