Casper Sleep King Size Medium Firm Foam Hybrid Mattress - 100-Night Trial, 10-Year Warranty, CertiPUR-US® Certified

About this item

• They are produced without the use of ozone-depleting substances and phthalates that fall under the oversight of the Consumer Product Safety Commission, and they undergo testing to ensure low VOC emissions to maintain indoor air quality.
• Please allow 24-72 hours for your mattress to regain its full shape. Any memory foam will expand faster in a warmer room. In cold temperatures your mattress may take a bit longer to return to its full size.
• Zoned SupportTM: Three zones of targeted support for proper spinal alignment. Softer foam around the shoulders provides more relief to the upper body. Firmer foam under the hips, waist, and lower back helps align your spine.
• Breathable open-cell foam layers allow airflow to soothe you to sleep. All of our polyurethane foams are CertiPUR-US certified.
• Base: Resilient springs add a little lift, support and airflow to the mattress of your dreams. A firmer border provides edge support to help you get in and out of bed easily.