10 Best Sweetnight Mattress 2026 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 12 Inch Queen Mattress is a hybrid mattress combining pocketed coils and comfort foam to deliver a balanced sleeping experience. Its pocket springs provide strong, targeted support that helps keep the spine aligned, making it a good choice for back and stomach sleepers or anyone needing pressure relief. The quilted foam layer adds cushioning without compromising firmness, offering a medium-firm feel that suits many people who want support without too much softness.

One of the mattress’s notable features is motion isolation. Since the springs are individually wrapped, they absorb movement well, so if you share a bed, you’re less likely to be disturbed by your partner’s tossing and turning. The breathable foam and cover help with airflow, which can reduce heat buildup, though the mattress doesn’t specifically highlight advanced cooling technology. Edge support is decent thanks to the sturdy coil system, providing a stable surface near the mattress edges which can be helpful when sitting or sleeping close to the side. The materials used are CertiPUR-US and OEKO-TEX certified, which means they meet safety and environmental standards, adding peace of mind.

Durability appears solid given the quality of pocket coils and foam layers, along with a 10-year warranty that backs up the product lifespan. The mattress ships compressed and in a box, making it convenient to move and set up, though it requires up to 72 hours to fully expand. The mattress weighs 67 pounds, which might be a bit heavy for some to handle easily. While the firmness level aims to suit a broad range of sleepers, those who prefer very soft or very firm surfaces might find it less ideal. Temperature regulation is improved but not exceptional compared to mattresses with advanced cooling gels or materials. This Sweetnight mattress is a sensible choice for adults seeking a supportive, medium-firm hybrid mattress that reduces motion transfer and offers good durability. It suits couples and individuals who want pressure relief without sinking too deep, although people with very specific firmness or cooling needs should consider that before purchasing.