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In a Nutshell:
A Posh Peanut Blog

All things parenthood, fashion, and community.

What Should My Baby Wear Under a Sleep Sack?

Feb 14, 2024

Brooke Hamilton

Unsure about what your baby should wear under a sleep sack? Get the best clothing tips for comfort and safety.

mother sitting on bed holding infant wearing matching floral prints

How to Dress Your Baby for a Safe and Comfortable Sleep

Feb 14, 2024

Zoe Siegel

Learn how to dress your baby for sleep with our expert tips. Ensure a safe, cozy night for your little one every time.

mother holding baby in matching floral print swaddle

Dressing Your Newborn for the Journey Home from the Hospital

Feb 09, 2024

Brooke Hamilton

Wondering what your newborn should wear home from the hospital? Get tips for comfy, appropriate outfits for the big day.

Editor's Picks

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4 Steps to Plan Disney Matching Shirts for Your Next Disney Vacation

mainposhpeanut2024-pp-td017-brr-lifestyle-24_1200x.webp__PID:11dde76a-eb2e-455d-9dc4-19807813088b

Picture-Perfect: How to Choose the Best Outfit for Picture Day.

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Kindergarten Essentials: 5 Must-Have Items for Your Little One

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4 Steps to Plan Disney Matching Shirts for Your Next Disney Vacation

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Size	Weight (lbs)	Height (inches)	Bust	Waist	Hip
Preemie	0-6	UP TO 17	13	13.5	14.25
Newborn	6-9	UP TO 21.5	15	15.25	16
0-3 Months	9-12	21.5-24	16.5	16	17.5
3-6 Months	12-17	24-26.5	17.5	17	19
6-9 Months	17-20	26.5-29	18.5	17.75	20
6-12 Months	17-22	26.5-31	18.5	17.75	20
9-12 Months	20-22	29-31	19.5	18.25	20.5
12-18 Months	22-25	31-33	19.5	18.25	20.5
18-24 Months	25-27	33-34	20.5	19.25	20.75
2T	28-30	34-36	21	19.25	20.75
3T	31-34	36-39	21.5	20	21.5
4T	34-39	39-42	22.25	20.5	22.5
5T	39-43	42-45	23	21.25	23.5
6T	44-48	45-48	24	22	24.5
7Y	49-55	48-50	25	22.75	26
8Y	55-62	50-52	27	24	28
9Y	63 -71	52-54	28	24.75	29
10Y	72-84	54-57	29.5	25.5	31
12Y	84-101	57-62	31.5	26.75	33

Size	Weight (lbs)	Height (inches)	Bust	Waist	Hip
3T-4T	31-39	36-42	22.25	20.5	22.5
5t-6t	39-48	42-48	24	22	24.5
7Y-8Y	49-71	48-52	27	24	28
10Y-12Y	72-101	54-62	32	26.75	34

Size	Weight (lbs)	Waist	Hip
XXS (2/3)	28-34	20	21.5
XS (4/5)	34-43	21.25	23.5
S (6/7)	44-55	22.75	26
M (8)	55-62	24	28
L (10)	72-84	25.5	31
XL (12)	84-101	26.75	33

	XXS	XS	S	M	L	XL	2XL	3XL
Size (Numeric)	0	00-0	0-2	4-6	8-10	12-14	16-18	20-22
Bust	31	32	34	36	38.5	43	47	51.5
Natural Waist	24.5	25.5	27.5	29.5	32	39	43	47.5
Hips	33.5	34.5	36.5	38.5	41	45	49	53

	XS	S	M	L	XL	2XL	3XL
Bust	32	34	38	42	46	50	54
Natural Waist	26	28.5	32.5	36.5	40.5	44.5	48.5
Hips	33.5	34.5	37.5	40.5	43.5	45	47

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In a Nutshell:
A Posh Peanut Blog

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What Should My Baby Wear Under a Sleep Sack?

How to Dress Your Baby for a Safe and Comfortable Sleep

Dressing Your Newborn for the Journey Home from the Hospital

Editor's Picks

4 Steps to Plan Disney Matching Shirts for Your Next Disney Vacation

Picture-Perfect: How to Choose the Best Outfit for Picture Day.

Kindergarten Essentials: 5 Must-Have Items for Your Little One

4 Steps to Plan Disney Matching Shirts for Your Next Disney Vacation

Become a VIP! Join Our Community of 140K+ Parents

Baby and Children's Size Chart (Inches)

Baby and Children's Transitional Size Chart (Inches)

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In a Nutshell: A Posh Peanut Blog

FEATURED TOPICS

Trending

What Should My Baby Wear Under a Sleep Sack?

How to Dress Your Baby for a Safe and Comfortable Sleep

Dressing Your Newborn for the Journey Home from the Hospital

Editor's Picks

4 Steps to Plan Disney Matching Shirts for Your Next Disney Vacation

Picture-Perfect: How to Choose the Best Outfit for Picture Day.

Kindergarten Essentials: 5 Must-Have Items for Your Little One

4 Steps to Plan Disney Matching Shirts for Your Next Disney Vacation

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In a Nutshell:
A Posh Peanut Blog