Serta Perfect Sleeper Cobalt Calm Extra Firm Plus Adjustable Mattress Set
sku: 9729554
Serta Perfect Sleeper Cobalt Calm Extra Firm Plus Adjustable Mattress Set
sku: 9729554
Includes: Mattress and Plus adjustable base
The firm Cobalt Calm 12’’ mattress offers a supreme restorative sleep experience with its innerspring design. Enjoy cool, contouring comfort with the Cool Twist® Gel Memory Foam, which enhances airflow and heat dissipation. The PillowSoft® Aire foam layer promotes airflow through its unique, gently rippling design, keeping you comfy all night long. Cushion Quilt™️ foam and two support foam layers add extra softness to your sleep. Experience even more targeted lower back and hip support with the three-zoned 850-coil density system. This mattress is topped with an anti-bacterial, cool-to-the-touch cover made with CoolFeel™️ fabric, helping stomach and back sleepers achieve perfect sleep. Being CertiPUR-US® Certified, rest assured knowing our foam materials are free from harmful chemicals and gasses.
The Plus adjustable base gives you added flexibility and comfort. With the head and foot lift adjustments, you can find your most relaxing angle. Two programmable memory positions and three preset positions make it easy to get comfortable with the push of a button. Complete with USB charging ports for convenience, this base also has adjustable height legs and a wireless remote. Includes under-bed LED lights. Compatible with the MotoSleep app.
The firm Cobalt Calm 12’’ mattress offers a supreme restorative sleep experience with its innerspring design. Enjoy cool, contouring comfort with the Cool Twist® Gel Memory Foam, which enhances airflow and heat dissipation. The PillowSoft® Aire foam layer promotes airflow through its unique, gently rippling design, keeping you comfy all night long. Cushion Quilt™️ foam and two support foam layers add extra softness to your sleep. Experience even more targeted lower back and hip support with the three-zoned 850-coil density system. This mattress is topped with an anti-bacterial, cool-to-the-touch cover made with CoolFeel™️ fabric, helping stomach and back sleepers achieve perfect sleep. Being CertiPUR-US® Certified, rest assured knowing our foam materials are free from harmful chemicals and gasses.
The Plus adjustable base gives you added flexibility and comfort. With the head and foot lift adjustments, you can find your most relaxing angle. Two programmable memory positions and three preset positions make it easy to get comfortable with the push of a button. Complete with USB charging ports for convenience, this base also has adjustable height legs and a wireless remote. Includes under-bed LED lights. Compatible with the MotoSleep app.
| dimensions assembled | 60.00W x 27.00H x 80.00L | length inches assembled | 80 |
|---|---|---|---|
| height inches assembled | 27 | width inches assembled | 60 |
| leg height | 9 |
| sku | 9729554 | mattress top type | Tight Top |
|---|---|---|---|
| adj base features | Head Motor, Foot Motor, 2x Programmable Memory Position, Wireless Remote, 3x Preset Positions, USB Charging Port, Folds In Half for Easy Delivery, LED Lights Under Bed, MOTOSLEEP APP compatible, Adjustable Leg Sizes (3", 6", 9") | pillow type | Back, Stomach |
| adjustable base compatible new | Yes | product care | Regularly rotating your mattress can prolong its lifespan and provide you with a more comfortable sleep surface. In general, it's recommended to rotate your mattress every 3 to 6 months. |
| all features | Adjustable Base Compatible, Bluetooth App, Cooling Technology, Foot Incline, Head Incline, Hypoallergenic, Motion Separation, Pocket Coil, Preset Positions, Under Bed Lighting, Zero Clearance | support system | 850 3 Zoned Coil System |
| coil count | 850 | sustainability | CertiPUR-US Certified |
| comfort layers | CoolFeel™ Fabric, PillowSoft® Aire, Serta® Support Foam, Cushion Quilt™ Foam, Cool Twist® Gel Memory Foam, Serta® Support Foam | top upholstery | Antimicrobial Mattress Protection |
| comfort level | Firm | type of mattress | Innerspring |
| edge support | 360 Degree | wellness benefits | Acid Reflux Relief, Allergy Relief, Back Pain Relief, Joint Pain Relief, Reduces Motion Transfer, Restless Leg Relief, Relief for Hot Sleepers, Snoring Relief, Reduces Tossing and Turning |
| intended use | Indoor | zone support | 3 Zone |
| made in america | Yes |






