Diamond Mattress Rock Express Mattress

The Rock Express is designed for those who prefer minimal sinkage and a supportive, stable surface. While it provides pressure relief through its HD comfort layers, you will feel like you are sleeping 'on' the mattress rather than sinking 'into' it.

Because this is an extra-firm model, it is generally best suited for back or stomach sleepers who need spinal alignment. Side sleepers often require a softer surface to cushion the shoulders and hips, so this may feel too rigid for that sleep position.

Yes, the performance fabric is designed to pull moisture away from your body, which helps regulate your temperature throughout the night. Combined with the airflow provided by the wrapped coil system, it prevents heat from becoming trapped in the mattress layers.

The individually wrapped coil system is excellent at limiting motion transfer. Because each coil moves independently, you are less likely to feel your partner moving or getting out of bed during the night.

This certification ensures the foams used in the mattress are made without ozone depleters, mercury, lead, or other heavy metals. It also guarantees low VOC emissions for better indoor air quality in your bedroom.

The 20-year warranty covers manufacturing defects in the materials and workmanship, such as sagging beyond a specific depth or coil failure. It is a long-term commitment to the quality of the mattress construction, though it does not cover normal wear and tear or personal comfort preferences.