Ever since we bought a naturapedic crib matress for its quality, versatility (2 in 1 for crib and twin matresses) and durability, this has been our go-to brand towards green living. We now have 3 verse twins, a king EOS (which can be customized for firmness seperately on both sides)and a crib matress and every single one has held up great in the last few years. You should even checkout their organic matress covers. Amazing! Great price for the top quality. Thank you Naturapedic Family!!