1. Upon opening, the mattress should come back to its specified dimensions within 48 hours, if it doesn t come back to the exact dimension of the mattress, the product is defective. However, a + or - 15% variation in length, width and thickness is in the tolerance limit. 2. Any sort of fabric damage found on opening the seal is considered to be a defective product. 3. Any physical flaw in the mattress that causes the foam material to split or crack, despite normal usage and proper handling. 4. Reduction of thickness of greater than 20% will be considered as sagging and will be treated as a manufacturing defect.To claim for Manufacturing defect customer is required to contact the support team and share relevant images of the product for examination,Dully the customer will be acknowledged for return or replacement.