Tear in latex just after 9months!

After several months of searching for the right mattress and going through two separate mattress returns with our furnture company, we finally settled on a Kingsdown Dual Mattress (meaning each side has a different level of comfort and support.) We absolutely loved it. Over and over again, we commented to each other about what a great mattress this was. But then after 9months of ownership I woke up one morning feeling a tear in the latex top. Underneath the fabric cover there was a clear 6 inch tear with spring coming up through it. I could not believe it! What made it worse was since I bought it on clearance, there was no warranty. Well it was great while it lasted (only 9months)! Needless to say, I am very dissappointed, Because we loved the comfort of this mattress, I am thinking about somehow repairing it myself.