- Sleep cooler through the night with DualCool Technology
- Feel supported with 900 Series Pocketed Coils
- Consistent comfort with the BeautyEdge Foam Encased Edge
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Use our pressure test result to see if this is the right mattress for you!
The Beautyrest Silver Adda 4 Medium Firm Full XL Size Mattress makes a smart choice if you're looking to keep your cost down but still get a great mid-tier mattress with a firm comfort level that's not incredibly hard. This mattress features a solid coil system, thoroughly tested comfort materials, and a great edge support-- everything necessary to get quality sleep without breaking the bank.
Getting a Comfort Scale score of 4 out of 10 (10 being the softest), the Adda 4 Medium Firm offers exactly the kind of comfort most people picture when they say they like a firm mattress. Its initial padding keeps you from feeling as if you're sleeping on a carpeted floor, and it offers adequate body contouring while supplying solid lower back support.Solid Support From an Excellent Coil System
One of the best coil systems on the market, the Beautyrest Pocketed Coil System contours to the unique shape of your body while guaranteeing there's plenty of solid lower back support. Built from high carbon steel, this coil system is made to last, and it's fully compatible with all modern adjustable bases. The simple but effective design helps minimize transfer of motion for sound nights of sleep.Tend to Sleep Warm? This Mattress Can Help.
Dual Cool Technology creates a cooling surface that will ensure you can sleep comfortably cool throughout the night.Edge Support Ensures Consistent Comfort
It's okay to sleep close to the edges without feeling like you're going to roll off the side or feel forced back toward the center. The foam-encased edge support is a highly beneficial feature since it creates up to 10% more usable sleep surface compared with mattresses that don't have an edge support.Is the Adda 4 Medium Firm the Right Choice for Your Preferences?
Are there better options available from the Silver collection? Yes. But for the money, the Beautyrest Silver Adda 4 Medium Firm is able to deliver a level of comfort and support that makes it a fantastic choice in the mid-price mattress category. This mattress is dependably made and comes backed by a generous 10-year warranty to ensure your satisfaction.
|Cal King||11.75"||72"||84"||96 lbs.|
|Twin XL||11.75"||38"||80"||48 lbs.|
|Full XL||11.75"||53"||80"||65 lbs.|
Your mattress purchase is fully compatible with all modern support systems, including adjustable base, platform bed, box spring/foundation, even the floor!
We test and measure body pressure on each mattress using sophisticated technology. We then provide you a personal recommendation.Learn More »
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Mattresses change names from store to store, to prevent you from comparison shopping. We think this is wrong, and have done the work to help you understand what models on our site match up to those you may have tried in a store. That way, you can always get the best price.Comparable To: Fernanda Plush
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You'll be contacted by our carrier to schedule delivery. Someone must be home to accept delivery. Weekend and evening deliveries may be available for a nominal fee. Call us at 1-800-455-1052 for availability and pricing. Please note that furniture and bedding deliver separately from your mattress order.
*Please check your zip code delivery estimate on individual mattress model pages for a proper estimate. Remote locations can experience longer lead times.