Hi shirleyuguest,
Dormia is a trademarked brand name for Classic Brands.
They make some some good quality and value mattresses but a mattress is only as good as the quality of its construction and materials and the only way to assess any mattress is to know the specific details of all the layers and components in the mattress. The brand is just the name of a manufacturer that builds the mattress and puts the materials inside a cover … and their label on the cover.
The key with any successful mattress purchase is to test for it’s suitability in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences), compare it to other similar mattresses for quality, value, and likely durability based on the materials inside it, and then to add in all the other objective, subjective, and even intangible factors that are the most important parts of your personal value equation.
Each manufacturer or “brand” makes many mattresses that usually range from lower quality and lower budgets to higher quality and higher budgets and the brand name itself is not nearly as knowing how to make meaningful comparisons between them.
If you can list the specific materials and layers in the mattress you are considering I’d be happy to let you know my thoughts about it.
Phoenix