We purchased the split sides king size mattress from a local store. We were told that the mattrass had the warranty of 30 years, price was around $4,000. The mattress did not smell and was comfortable. Lateley the mattress started exuding unpleasant odor of old rubber, simmilar to the odor tennis balls have when they are brand new. I opened the cover only to discover that the mattress was crumbling all along edges. I sent pictures to the Savvy Co. They tried to convince me that it was a natural process of rubber oxidizing. They suggested vacuuming the crumbes and dust and continue to use it. They claim a 20 year warranty now. I cannot imagine what the intensity of smell and the crumbling in 10 more years. Absolute disappointment!