# Sofa-bed prototype — separate example

The prepared JSON supplies a 123 cm sofa prototype with `sofa` in Day mode and `bed165` / `bed190` in Night mode. These are alternative prepared visual states, not certified mechanisms. The example is not loaded automatically. Import its JSON explicitly, then choose a state. All states share an anchor and angle; their geometry and collision envelope change with the selected configuration. Refer to the JSON notes for dimensional assumptions and the [object format](../FORMAT-OBJET.md) for fields and limits. Preserve the original IDs when exchanging files.