Hi Sarah, We don't have a specific warranty but expectation is the latex overlay should comofortably last 5+ years while maintainging good support and comfort. Over a longer period of time it will gradually soften. Biggest cause of degradation tends to be excessive sweatng or exposure to moisture so we tend to recommend a mattress protector be used with all of our overlays. Happy to help with any other questions and all our products are available through NDIS and if you are after bulk purchases for your facilties please register here for wholesale pricing. https://www.the-pillow.com.au/hp/user/registrationWarm regards, Brett. 03 8585 6685Warm regards, Brett.