I bought three pajamas for a family photo with children aged 4, 5 and 7. A 4-year-old girl usually wears a very small or 5T; Boys aged 5 and 7 both wear small or 5/6 (the older one is slightly taller and slimmer but weighs about the same). I ended up getting size 7 for the boys and size 6 for her sister. When I opened the package I was worried they would be too small especially the tops but they are stretchy! The kids loved them and wore them from taking photos to going to bed. By law, children's pajamas must be either flame retardant (chemically treated) or form fitting. Sometimes it can be difficult to find the right option.
Simple Joys by Carter's Baby and Toddler Boys' 3-Pack Footed Pajamas - Loose Fit & Polyester Jersey Material
42 Review
Cozy and Comfortable: Prince of Sleep Plush Pajama Pants - Fleece PJs for Boys
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3-Pack Snug Fit Footed Cotton Pajamas for Boys by Simple Joys Carter's
28 Review
π Carter's Boys' 4-Piece Fleece Pajama Set - Easy Delights for Simple Joys
3 Review
π₯ Stay Warm and Active with Rocky Fleece Thermal Underwear Bottoms for Boys
44 Review
π Boys' Outdoor Climbing Convertible Trousers - Waterproof | Clothing
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Boys' Adidas Active Sports Tricot Athletic Clothing
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π Bold Pack Sleeve Active Hoodie Sweatshirt Set for Boys' Clothing - Stylish and Comfortable!
47 Review