SIEZ GUIDE

Zippy 拉链连体睡衣
Size Height (in) Weight (lbs)
Micro Preemie Up to 15 Up to 3
Preemie 15–18 3–5
Newborn 18–21 5–8
0–3m 21–23 8–12
3–6m 23–27 12–17
6–9m 27–29 17–20
6–12m 27–31 17–23
12–18m 31–33 23–26
18–24m 33–34.5 26–30
2T 33–36 29–31
3T 36–39 31–35
Two-Piece Pajama Set 两件套睡衣
Size Height (in) Weight (lbs)
12–18m 29–31 22–26
18–24m 31–33 26–30
2T 33–35 28–32
3T 35–38 32–35
4T 38–41 35–39
5/6 42–48 39–48
7/8 48–54 48–69
9/10 54–57 69–87
12/14 58–61 87–110
16 61–63 110–120
Newborn Capsule 新生儿系列
Apparel 服装
Size Height (in) Weight (lbs)
Micro Preemie Up to 15 Up to 3
Preemie Up to 18 Up to 5
Newborn 18–21 5–8
0–3m 21–23 8–12
3–6m 23–27 12–17
6–9m 27–29 17–20
Hat 帽子
Size Head Circumference (in)
Micro Preemie / Preemie Up to 14⅛
Newborn / 0–3m 14⅛–16¼
3–6m 16¼–17¼
6–9m 17¼–17¾
Booties 脚套
Size Insole Length (in)
Micro Preemie / Preemie 3¼
Newborn / 0–3m 3⅝
3–6m 4
6–9m 4⅜
Infant Gown 礼服
Size Garment Length (in) Chest Circumference (in)
Micro Preemie / Preemie 16½ 15¼
Newborn / 0–3m 21½ 17¼
Play by Little Sleepies Play 系列
Size Height (in) Weight (lbs)
Preemie Up to 18 Up to 5
Newborn 18–21 5–8
0–3m 21–23 8–12
3–6m 23–27 12–17
6–12m 27–31 17–23
12–18m 31–33 23–26
18–24m 33–34.5 26–30
2T 33–36 29–31
3T 36–39 31–35
4T 39–42 35–39
5 42–45 39–43
6 45–48 43–50
7 48–50 50–57
8 50–52 57–65
10 52–57 65–80
Sleepy Bag 睡袋
Age Weight (lbs) Height (in)
0–6m 8–17 21–27
6–18m 17–26 27–32
18–36m 26–35 32–39
TOG Warmth Rating 保暖等级
Weight TOG Room Temperature
Lightweight 0.5 72–78°F / 22–26°C
Seasonless 1.5 68–74°F / 20–23°C
Winter Weight 2.5 61–67°F / 16–19°C
Women's Pajamas 女士睡衣
Pajamas & Tee 睡衣 / T恤
Size Numerical Size
XS 0–2
S 4–6
M 8–10
L 12–14
XL 16–18
XXL 20–22
3XL 24–26
Tank Nightgown 背心睡裙
Size Chest (in) Length (in)
XS (0–2) 15.4 34.6
S (4–6) 16.5 35
M (8–10) 17.7 35.4
L (12–14) 18.9 35.8
XL (16–18) 20.1 36.2
XXL (20–22) 21.3 36.6
3XL (24–26) 22.4 37
Caftan Gown 长袍睡裙
Size Chest (in) Length (in)
XS (0–2) 19.75 37
S (4–6) 20.5 38
M (8–10) 21.25 39.5
L (12–14) 22 40.5
XL (16–18) 23 41.75
XXL (20–22) 23.5 43
3XL (24–26) 24.5 44
Long Sleeve Sleep Shirt 长袖睡衫
Size Chest (in) Length (in)
XS 19.75 32.5
S 20.5 33.5
M 21.25 34.5
L 22 35
XL 23 36
XXL 23.5 36.5
3XL 24.5 37.5
Men's Pajamas 男士睡衣
Size Chest (in) Waist (in)
XS 34–36 24–28
S 38–40 28–31
M 41–42 31–34
L 43–44 34–39
XL 46–47 40–44
XXL 48–50 44–48
3XL 50–52 48–52
Adult Robe 成人浴袍
Size Chest (in) Length (in)
XXS/XS 32–36 44.5
S/M 37–42 46
L/XL 43–47 47.5
XXL/3XL 48–55 49
Underwear 内衣内裤
Girls' Brief 女童三角内裤
Size Numerical Size Waist (in)
XXXS 18/24m 19–20
XXS 2/3T 20–21
XS 4/5T 21–22
S 6/7 22–23
M 8/10 24–25
L 12/14 26–28
Boys' Boxer Brief 男童平角内裤
Size Numerical Size Waist (in)
XXXS 18/24m 19–20
XXS 2/3T 20–21
XS 4/5T 21–22
S 6/7 22–23
M 8/10 24–25
L 12/14 26–28
Women's Hipster 女士低腰内裤
Size Numerical Size
XS 0–2
S 4–6
M 8–10
L 12–14
XL 16
XXL 18
Men's Boxer Brief 男士平角内裤
Size Waist (in)
XS 30–31
S 32–33
M 34–36
L 37–39
XL 40–43
XXL 44–47
Pet Bandana 宠物围巾
Size Neck Circumference (in)
XS/S Up to 16
M/L Up to 23

* All measurements are in inches unless otherwise noted.
* Zippy is designed to fit 3x longer than average sleepers — stick true to size, no need to size up.
* Two-piece PJs are cut slim for safety; if your little has a rounder build, size up one size.
* Do not size up on Sleepy Bags — ensure proper fit around arms and neck for safety.
* Actual garment fit may vary slightly by style and fabric stretch.