10 Best Sweetnight Mattress 2025 in the United States

The Sweetnight CoolNest 16 inch King Mattress is designed to offer a comfortable medium firmness with excellent support thanks to its 5-zone ergonomic design. This targets pressure points across your body to help keep your spine aligned and relieve back pain, which is beneficial for those needing extra support during sleep. The mattress uses a combination of gel-infused memory foam and high-resilience foam that work together to absorb motion, helping reduce disturbances caused by a partner moving at night, making it a good choice for couples.

One of the standout features is its cooling technology. The CoolNest System and breathable cover improve airflow and help regulate temperature, making it suitable for hot sleepers or those who tend to overheat during the night. The mattress cover also wicks away moisture to keep you dry and comfortable. Edge support is decent due to the stable foam layers, allowing use of the full surface without feeling like you might roll off.

In terms of durability, the mattress includes CertiPUR-US certified foams and a 10-year protection plan, indicating it’s made with quality materials designed to last. Although memory foam mattresses can sometimes feel warmer than innerspring options despite the cooling features, and the medium firmness may be too soft for those who prefer firmer beds, it requires about 72 hours to fully expand after unpacking. This mattress fits adults seeking medium firmness, pressure relief, and temperature control—especially couples or hot sleepers—combining comfort, support, and cooling in a well-rounded king size memory foam mattress.

The Sweetnight CoolNest 12 Inch Full Size Mattress is a medium firmness bed designed to offer a cooler and more comfortable night's sleep, especially for those who tend to overheat. Its standout feature is the CoolNest System, which combines gel-infused memory foam with a special high-resilience foam to regulate temperature and reduce night sweats, making it ideal for hot sleepers.

The mattress uses a 5-zone ergonomic support system that targets different body areas to relieve pressure and help maintain spinal alignment, benefiting those with back pain or who want better posture during sleep. Motion isolation is enhanced by multiple memory foam layers, minimizing disturbances from a partner's movements. Breathability is improved by the mattress cover's 3D-woven fabric and the foam’s airflow design, helping to keep the surface dry and fresh.

It is CertiPUR-US certified, ensuring the foam is free from harmful chemicals, and comes compressed in a box for easy setup. Durability appears promising with high-density foams and a 10-year warranty. This mattress is well-suited for people seeking medium firmness with effective cooling, pressure relief, and minimal motion transfer, making it a solid choice for couples or anyone wanting a comfortable, supportive sleep surface without overheating.

The Sweetnight King 12-Inch Hybrid Mattress offers a blend of comfort and support, making it a suitable choice for those seeking a balanced sleeping experience. Its design includes individually pocketed coils and multiple foam layers, which help in providing both softness and firm support, reducing the risk of sagging or rolling off the bed. This feature is particularly beneficial for individuals who require a mattress that supports varied sleeping positions and bodily contours.

The mattress is equipped with special foam that aids in regulating moisture, odor, and temperature. This can be a great advantage for people who experience night sweats or live in humid climates as it helps maintain a dry and comfortable sleeping environment. Additionally, the breathable fabric quilted cover enhances the overall comfort and ensures a skin-friendly touch.

Motion isolation is another strong point due to the pocketed coil design. This means that movements, such as your partner turning in bed, are less likely to disturb your sleep. This feature is ideal for couples or light sleepers who are easily awakened by sudden movements.

However, at 101.6 pounds, the mattress is relatively heavy, which could pose challenges for setting up or moving it. Although it fits most king-sized frames, ensure your existing frame can handle its weight and dimensions. The Sweetnight King Mattress suits those who value support and motion isolation in their sleeping surface, with the added benefit of temperature regulation. However, the weight and potential firmness should be considered based on personal preferences and physical capabilities.