Size & Fit Guide
Accurate size charts for 0-3M up to 8Y with height, weight, chest measurements and fit advice.
Children grow at their own wonderful pace! Our garments are thoughtfully tailored with gentle ease, generous diaper clearance, and stretchy, unrestrictive necklines to keep your child comfortable for months.
Kids Nightsuit & Loungewear Sizing Chart
| Size / Age | Child Height | Weight Bracket | Chest (inches) | Waist (Elastic) |
|---|---|---|---|---|
| 0–3 Months | Up to 23 in / 58 cm | 8–12 lbs (3.6–5.5 kg) | 16–17 in | 14–16 in |
| 3–6 Months | 23–27 in / 58–68 cm | 12–17 lbs (5.5–7.7 kg) | 17–18 in | 15–17 in |
| 6–12 Months | 27–30 in / 68–76 cm | 17–22 lbs (7.7–10 kg) | 18–19.5 in | 16–18 in |
| 1–2 Years (12-24M) | 30–34 in / 76–86 cm | 22–28 lbs (10–12.7 kg) | 19.5–21 in | 17–19 in |
| 2–3 Years | 34–38 in / 86–96 cm | 28–34 lbs (12.7–15.4 kg) | 21–22.5 in | 18–20 in |
| 3–4 Years | 38–41 in / 96–104 cm | 34–39 lbs (15.4–17.7 kg) | 22.5–24 in | 19–21 in |
| 4–5 Years | 41–44 in / 104–112 cm | 39–45 lbs (17.7–20.4 kg) | 24–25 in | 20–22 in |
| 5–6 Years | 44–47 in / 112–119 cm | 45–52 lbs (20.4–23.6 kg) | 25–26.5 in | 21–23 in |
| 6–7 Years | 47–50 in / 119–127 cm | 52–60 lbs (23.6–27.2 kg) | 26.5–28 in | 22–24 in |
| 7–8 Years | 50–53 in / 127–135 cm | 60–68 lbs (27.2–31 kg) | 28–29.5 in | 23–25 in |
Garment Measurement Chart (Inches)
| Measurement | 6-12mnt | 1-2yrs | 2-3yrs | 3-4 yrs | 4-5yrs | 5-6yrs | 6-7yrs | 7-8yrs | 8-9yrs | 9-10yrs | 10-11y | 11-12y | 12-13y | 13-14yrs |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chest | 22 | 25 | 26 | 27 | 28 | 29 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 |
| Shoulder | 8 | 10.5 | 11 | 11.5 | 12 | 12.5 | 12.5 | 13 | 13 | 13.5 | 14 | 14 | 14.5 | 14.5 |
| Sleeves Length | 9.5 | 10.5 | 11.5 | 12.5 | 13.5 | 15.5 | 16 | 17 | 18 | 19 | 19.5 | 20 | 20.5 | 21 |
| Shirt Length | 13.5 | 16.5 | 17.5 | 18.5 | 19.5 | 20.5 | 20.5 | 21.5 | 22.5 | 23 | 24 | 24.5 | 25.5 | 26 |
| Pyjama Length | 16 | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 31 | 32 | 33 | 34 | 35 | 36 |
| Waist Elastic | 15.5 | 17 | 17.5 | 18 | 18.5 | 20 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 |
Mama's Fit Tips:
- Between Sizes? We recommend sizing up! Nightwear is best enjoyed relaxed and cozy, allowing room for growth spurts.
- Diaper Space: All sizes up to 3Y include extra gusset room specifically tailored to accommodate bulkier overnight cloth and disposable diapers.
- Pajama Bottoms: Soft, encased elastic waistbands prevent pinching and leave zero red marks.
Peaches & Plums Official PolicyLast Updated: August 5, 2026