Some Emma mattress reviews in Canada complain about a lack of transparency in the mattress description.
Namely, people are confused that the mattress is said to have 5 layers at one point and just 3 at another.
However, upon closer inspection, this could be due to confusion rather than dishonesty (unless something was changed in the product description between these Emma Mattress Canada reviews).
The Emma Sleep Canada Original mattress has 3 layers of foam.
But Emma, the sleep company, points to 5 layers in total in their mattress layers graphic because they include the mattress cover and anti-slip base here.