"ErgoFlex 5G without Coils".
l don't know about the Tempur Mattresses that are more expensive, But Once get use to the ErgoFlex 5G Mattresses which takes about a week, The ErgoFlex 5G supports the body beautifully; hip and back support is fantastic . Lastly l must state this memory foam mattresses with coils attract Low EMF ( Electromagnetic Frequency) - Science is well established if you do research which not good for the body and that's is why gone for a memory foam mattresses without the coils.