Not all mattresses are vegan but here at Mattress Online, we sell a selection of mattresses that are vegan friendly. But, as the mattress industry grows and develops, so does the technology to create more vegan-friendly products. Mattresses that are labelled as natural or organic may contain animal by-products. Even though the comfort filling may be vegan friendly, it doesn't mean the upholstery or cover is suitable for vegans. We clearly mark which of our mattresses are vegan-friendly, but we advise you to avoid natural mattresses when searching for a vegan-friendly alternative. This is because natural mattresses often contain wool or other animal-derived fibres as their main comfort filling.