The New Vi-Spring Collection features 8 extraordinary mattresses with a Lifetime Warranty. These mattresses are handcrafted to command the presence of any room. For over 100 years Vi Spring has constantly striven to improve the quality, comfort, and durability of its luxury mattresses. If you look at the list of components that go into a Vi Spring mattress, you can see it's a quality product. Shetland wool, raw silk, cashmere, horsetail, coir and bamboo are specially selected for their comfort, toughness, warmth, springiness and overall luxury. These natural materials are all lovingly put together to give each mattress a superb, luxurious finish.