Both read as classic lingerie, but they're built differently. How to tell them apart, which fits which body and occasion, and what to check before buying.
The actual difference
A teddy is a fitted one-piece: a top and bottom joined into a single garment, closely following the body's shape, usually with a snap or clip closure at the base for practical reasons. A chemise is a loose, slip-style piece that hangs from the shoulders with no fitted bottom at all — structurally closer to a short nightgown than to a bodysuit. That single difference — fitted-and-joined vs. loose-and-hanging — is what actually separates the two categories, regardless of how a specific listing chooses to name it.
Which suits which occasion
- Teddies suit shorter wear where a fitted, going-out-appropriate silhouette matters — think special occasion rather than all-night comfort, since the fitted construction and closure aren't built for sleeping in.
- Chemises suit longer wear, including as actual sleepwear, since nothing is fitted at the waist or hips and there's no closure to deal with.
- Babydolls (a related loose style, typically shorter than a chemise with an empire-waist cut and a separate bottom piece) split the difference — nearly as comfortable as a chemise, with more shape.
What to check before buying
- Closure type on a teddy — snap closures are the most practical for actual use; a garment with no closure at all needs to be removed as one piece, which some people find impractical.
- Fabric weight on a chemise — a heavier satin drapes differently than a lightweight mesh, and product photos on a different body type won't necessarily show how a specific fabric moves on yours.
- Sizing consistency — see our full lingerie buying guide for sizing generally, since it varies meaningfully between brands in this category specifically.
