Mattresses play a crucial role in determining comfort and sleep quality. To ensure that mattresses meet industry standards, manufacturers use advanced testing equipment to assess various performance parameters. The Mattress Comprehensive Performance Testing Machine GT-LA08B is one such machine designed to test multiple aspects of mattress quality. In this article, we will explore the Hardness Value & Firmness Rating Test performed using the GT-LA08B and provide a step-by-step guide on how to operate the machine.