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Description
- CoolNest System for a Cooler Night - The CoolNest 14 inch king size mattress features our innovative CoolNest System, combining PCMflux high-resilience foam with gel-infused memory foam to deliver a dual cooling technology. This advanced system helps actively regulate temperature throughout the night, reducing overheating and night sweats for hot sleepers.
- 5-Zone Ergo Support for Pressure Relief - Engineered with a 5-zone design, this king foam mattress integrates support foam and comfort bars to target pressure points from head to toe. It helps redistribute pressure while maintaining stability, promoting proper spinal alignment and back pain relief. Endorsed by the American Chiropractic Association (ACA), it's designed for restorative sleep.
- Motion Isolation for Undisturbed Sleep - Constructed with multiple layers of memory foam, the CoolNest 14 inch memory foam mattress king has the advantage of foam on absorbing noise and vibrations. Additionaly, These layers work synergistically to minimize motion transfer, so you're less likely to be disturbed whether your partner shifts positions or gets up during the night. Wake up feeling more refreshed.
- Enhanced Breathability for Ultimate Comfort - The Cool Nest cover incorporates 3D-woven technology, featuring an ventilation pores design that improving breathability by 35% compared to standard fabrics. Also, the PCMflux high-resilience foam with hollow structure promotes 3X airflow. Thereby these help to wick away moisture and adapt to body temperature for a cooler, drier sleep surface.
- Healthy Sleep & King Size Mattress in a Box - The Sweet night Cool Nest gel memory foam mattress features CertiPUR-US certified foams and OEKO-TEX certified cover, which provides a safer and healthier sleep environment. The mattress king size 14 inch is compressed in a box for easy setup. Additionally, it comes with a 10-year protection. Please allow the sweetnight mattress to fully expand for 72 hours.
Shipping
Shipping Policy
Effective Date: May 13, 2026
Thank you for shopping with SixtyCart. We are committed to delivering your orders quickly, safely, and efficiently across the United States.
1. Order Processing
All orders are processed within 1–2 business days after payment confirmation.
Orders are not processed or shipped on weekends or public holidays.
In periods of high demand, processing times may be slightly delayed.
2. Shipping Time
Estimated shipping time for most orders is:
- 2–5 business days within the United States
Delivery times may vary depending on:
- Customer location
- Weather conditions
- Carrier delays
- Product availability
3. Shipping Charges
Shipping costs are calculated at checkout based on the delivery location and selected shipping method.
Free shipping promotions may be available on selected products or orders.
4. Order Tracking
Once your order has been shipped, you will receive a shipping confirmation email containing your tracking number and tracking details.
Please allow up to 24–48 hours for tracking information to update.
5. Incorrect Shipping Information
Customers are responsible for providing accurate shipping information during checkout.
SixtyCart is not responsible for:
- Delays caused by incorrect addresses
- Lost packages due to incorrect customer information
- Additional shipping charges resulting from address corrections
6. Delayed or Lost Packages
While we work closely with trusted shipping partners, delays may occasionally occur beyond our control.
If your package appears lost or delayed, please contact us and we will assist you in resolving the issue with the shipping carrier.
7. Damaged Packages
If your order arrives damaged:
- Contact us within 48 hours of delivery
- Provide photos of the damaged package and product
- Keep all original packaging materials
We will review the issue and arrange a replacement or refund when applicable.
8. International Shipping
Currently, SixtyCart primarily ships within the United States. International shipping availability may vary depending on product and destination.
9. Contact Us
For shipping-related questions or support, please contact us:
SixtyCart
- Address: 1500 N Grant St, Denver, Colorado 80203, USA
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