The Sherwood Quantum Edge Extra Firm Mattress, CA King is all about uncompromising support and pressure relief, perfect for back sleepers, stomach sleepers, or anyone who prefers a firm sleep surface. Built to offer the ultimate support, you can rest easy knowing you won’t sink in but stay comfortably aligned all night long. The extra-firm comfort layer provides exceptional back support, distributing your weight evenly and cradling your spine in perfect neutrality. With the Sherwood Quantum Edge Extra Firm Mattress, you can bid farewell to your aches and pains. The individually encased coils adapt to your body’s every curve, relieving pressure points and promoting deeper, more restful sleep. They also work to prevent motion transfer, ensuring you won’t be jolted awake by your partner’s tossing and turning. • Mattress Comfort Level: Extra firm • Sleeper Orientation: Back and stomach sleepers Product Details: • A breathable comfort layer promotes airflow and prevents overheating, keeping you at an ideal temperature for deep sleep. • Ideal for back and stomach sleepers who prioritize firm support and proper spinal alignment. • Secure and supportive. • California King size offers ample room to stretch out and truly enjoy the extra-firm comfort. • 10-year warranty.