Can you tell me if all Kingsdown mattresses have a Certipur certification?
Hi Smudger72,
Welcome to the Mattress Forum! 
Kingsdown is listed on the CertiPUR-US site as being a company that sells items using CertiPUR-US certified foams, but you’d have to confirm that any particular product you were considering would be using foams with that certification.
Phoenix
Thanks. Will do