Basic premium caters to lodging companies who prefer better quality among peers. Core springs are fully heated for super strength.

Firmness Indicators :
Extra Firm | Firm | Medium | Soft
( just for reference only )

How Does It Feel

Firm and overall acceptable support with less shakiness while sitting on the bed.
Its lack of cushion layer brings you nearer to the core firmness.

Ideally for solid back sleepers.