Beautyrest has led the way in introducing a wide range of advancements that help you sleep your best so you can be more awake. It all started with the introduction of the world's premier sleep system: Beautyrest pocketed coils. With the BR800 12 in. medium innerspring tight top DualCool mattress, our 800 series pocketed coil technology provides flexible support precisely where it is needed and isolates motion between two sleepers. To keep your mattress fresh and cool, we created DualCool technology, which is an antimicrobial performance layer that works to move heat and moisture away, so you sleep at your ideal sleeping temperature. The antimicrobial layer protects your mattress from odor causing bacteria. With our 10-year limited warranty and rigorous durability testing, you can rest assured each night. This product does not protect users against bacteria, viruses, germs or other disease organisms. Color: Lines.