The Therapedic Portia combines premium technologies for a sleep that will leave you feeling refreshed. The TheraWrap Elite coils inside are individually wrapped to flex and conform independently of each other, reducing motion transfer and eliminating partner sleeping disturbance. To improve the transition of getting in and out of bed, the TheraFoam encased edge system provides tremendous edge support in addition to extra surface space. As an added feature, this mattress is constructed with copper-infused TheraCool gel technology. The microscopic copper particles naturally protect against viruses to prevent the spread of odors and stains, while copper's powerful conductivity complements the gel to dissipate excess body heat. The GlacierTouch fabric cover on top stays cold to the touch to ensure a cool and comfortable rest. 15 Year Limited Warranty