That CertiPUR-US certification means that the foam is made healthier than non-certified foam (click here to learn more). Their use of gel means that it doesn’t get hot like some other foams can. Virgin means that it is created exclusively for Honeydew Sleep, to their exact specifications. The fiber used by Honeydew Sleep is thinner and stronger than silk, and it feels incredible! It is nearly indistinguishable in feel from the most expensive down, without the allergy issues that down has.