9404.29.90.50 - Other

This HTS category, 9404.29.90.50, encompasses "Other" mattresses that are not specifically defined by their material (e.g., cellular rubber or plastics) or by their specific use or dimensions as detailed in its sibling categories. It serves as a residual category for mattresses of materials other than those explicitly listed elsewhere within the 9404.29 subheading, which are fitted with springs or stuffed or internally fitted with any material. The primary classification criterion here is the absence of a more specific subcategory fitting.

To distinguish this category from its siblings, it is important to note the exclusions. 9404.29.90.05 is specifically for mattresses intended for use in a crib or toddler bed, indicating a distinct purpose and potentially different safety or size requirements. Similarly, 9404.29.90.13 covers mattresses defined by precise dimensions: exceeding 91 cm in width, 184 cm in length, and 8 cm in depth. Therefore, 9404.29.90.50 applies to mattresses of other materials that do not fall into these specific use or dimension-based classifications.

As a leaf node, this category does not have further subcategories. Classification within this subheading relies on a careful review of the mattress's composition and dimensions to ensure it does not meet the criteria for any more specifically defined sibling categories. If a mattress is not specifically for cribs/toddler beds and does not meet the precise dimensional criteria of 9404.29.90.13, and is made of materials other than cellular rubber or plastics, it will likely be classified under this residual "Other" category.