My husband and I switched after having a temper-pedic for years. We wanted something organic, non-toxic and that didn't off-gas. We originally bought a twin mattress for our son by naturepedic and loved it- so we got one for ourselves as well! The mattress is the perfect amount of firm and soft. I don't find myself waking up sore anymore and it also stays cool which is a must for my husband. So far so good! Thanks naturepedic!