Ergocoil Infinity offers a very good waist support due to the ultra waist system, which was created especially for Yatas, and a sleep at an optimal temperature thanks to the adaptive system. The Yatas Ergocoil Infinity system directly supports the spine and prevents waking up feeling tired. The Ergocoil spring system used on the mattress remains very quiet over time. Ergocoil Infinity considerably improves sleep quality due to the large number of springs. Due to the double number of springs, the support for the spine is increased. Compared to the standard spring shape, the Ergocoil system offers a greater coverage with continuous threads. This results in the placement of the layers that make up the mattress as it should be. comfort and support. The Ultra Waist system offers comfort and support for the back and hips, the most vulnerable areas of the spine, personalized comfort regardless of the BMI index or body conformation. With a unique design, with crossed seams, the ERGOCOIL system offers better support during sleep, by using a single, long and durable steel wire for each spring. Durability test: no problem after 240,000 impacts. In exactly the same environment, women can feel cold while men feel warm. Adaptive material, intelligent and award-winning, mimics the action of an intelligent air conditioner distributing moisture 67% better and evaporating 25% faster In other words, Adaptive technology offers a personalized sleep temperature. The technology of the active support of the inner springs allows the muscles to relax in a more natural way. The springs fit perfectly on the body during the specific movements of sleep, providing support. Mattress height: 31 cm