Size Guide
Our cloudluxe™ bamboo is designed to fit up to 3x longer than standard sizing. when in doubt, size up... they'll grow into it. 🤍
Women's Slumber Pajama Set
Our Women's Slumber Pajama Sets have a relaxed, flowy fit: choose your usual size. Measure at the fullest part of your bust, natural waist, and hips to find your best match.
💡 If you're between sizes or prefer a roomier fit for lounging, go up one size
Little Zippers
Our zippered rompers are designed to grow with your baby. Measure your little one from shoulder to toe and match to the length column; this is the most reliable guide.
💡All sizes NB–18-24m include the convertible foot cuff
Slumber Pajama Set
Our two-piece sets have a relaxed fit that moves with growing kids. The 4-way stretch means they don't feel stiff or tight. Size based on your child's height for the best fit.
💡 If your little one is between sizes, go up. they'll wear it longer and the fit stays cozy rather than clingy.
Caring for your Sunday Littles
Our cloudluxe™ bamboo is low-maintenance — because tired parents don't need another thing to worry about.
🫧 machine wash cold on a gentle cycle
🌀 tumble dry low or lay flat to dry
🚫 no bleach
🧴 no fabric softener (it breaks down the bamboo fibres over time)
🤍 bamboo won't shrink, so what you buy is what you keep
Still not sure? email us at hello@sundaylittles.com — we're happy to help you find the right size.