Size guide

DearOnyx pieces are cut for ease at rest. If you are between sizes, choose the larger size for sleepwear.

Sleepwear & nightgowns

Size — Bust — Waist — Hips
S — 33–35 in — 26–28 in — 36–38 in
M — 35–37 in — 28–30 in — 38–40 in
L — 38–40 in — 31–33 in — 41–43 in
XL — 41–43 in — 34–36 in — 44–46 in

These are body measurements, not garment flat specs. We’ll refine them as graded samples come in.

How to measure • Bust: fullest point, tape parallel to the floor
• Waist: natural waist
• Hips: fullest part

Lingerie
Use the size options on each product page. Add detailed cup/band notes after samples confirm fit.

Need help?
Write us from the Contact page with your usual size in other silk or lounge brands, we’ll guide you.