【Wake Up Refreshed Every Morning】Experience the perfect start to your day with rejuvenating sleep. This king mattress features 3 ergonomic zones with 600+ responsive coils that embrace your body's natural curves and support your spine beautifully all night. Feel targeted comfort and wake up energized and ready to conquer your day. 【Sleep Cool Like You're Floating on Air】Picture sinking into a breathable cloud that keeps you comfortable all night. Our king mattress combines plush foam with airflow fabric - no more waking up sweaty. You'll stay cool, dry, and perfectly comfortable until morning. 【Sleep Undisturbed All Night Long】Finally enjoy uninterrupted rest with your loved ones. This 12 inch king mattress absorbs every movement with smart memory foam and independent coils. Your partner can toss, turn, or get up for snacks - you'll stay peacefully asleep in your zone. 【Enhanced Edge Support for Lasting Durability】Enjoy every inch of your mattress with confidence. Our hybrid mattress features double-row reinforced edge springs that provide exceptional support from corner to corner. Sit comfortably on the edge, stretch out fully, and experience seamless transitions in and out of bed while maintaining perfect mattress shape for years. 【Safety You Can Trust】Sleep worry-free knowing every detail protects your family. This king mattress in a box passes rigorous safety tests and includes thoughtful features like no-slip handles. We've designed everything with your peace of mind first. 【Risk-Free Sleep Trial】Try it in your own bedroom for 100 nights risk-free. Our king mattress includes 10-year warranty plus 24/7 support. CertiPUR-US certified for quality and safety standards - just healthy, safe sleep for your whole family. Susalt 12-inch mattress King size hybrid innerspring mattress is designed with individual springs and a breathable, skin-friendly mattress topper that provides support and comfort for your joints whether you're lying on your side, back or stomach, and also ensures that you'll stay cool and dry throughout your night's sleep. The mattress is CertiPUR-US certified and rigorously quality tested to ensure that it is free of harmful substances and will remain collapse-free for up to 10 years. Individual spring construction provides motion isolation to safeguard the independence of each person in the bed for an unparalleled and peaceful sleep experience. The mattress in a box packaging design allows for easier transport and the mattress fits most bed frames. Make every night's sleep a luxurious and inexpensive treat by choosing this hybrid innerspring mattress.