How much do Zinus mattresses smell? How strong is their odor?
Share your experience with Zinus' off-gassing reduction
Sleep Like The Dead's review said that problems with Zinus mattresses smelling depended on which model you got, saying, "Zinus foam models are 2 to 3 times more likely to off gas than spring models. About 12% of foam model owners (1 in 8) report a significant problem. (See memory foam off gassing for general analysis.)" The foam model was given a D+ and the spring model got a B-.
Tuck.com gave them a rating of Good (below Very Good and Excellent) and said, "Off-gassing is a common complaint among Zinus memory foam owners, but those who own innersprings report little to no odor."