Does the Memory on Top 1600 maintain its quality and shape over time? Which certifications does it have?

Yes. The support core featuring 1600 individually pocketed springs, enclosed within a high-resilience Waterfoam perimeter support box and combined with high-density Memory Foam, has been engineered to preserve its shape, support and ergonomic performance for many years. The Memory on Top 1600 is manufactured using certified materials that comply with CertiPUR®, OEKO-TEX® Standard 100 Class 1, LGA Quality, and ISO 9001 standards, guaranteeing safety, premium quality, durability and the absence of harmful substances.