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Encased Coil
Our Encased Coil with Serene® foam mattress brings together the buoyant feel of coil support with the immediate response and comfort of premium foam technology. Independent, wrapped coils provide proper orthopedic support and isolate movement so you and your partner can sleep undisturbed.
Serene foam has microscopic air capsules which provide exceptional support and fast recovery with superior heat dissipation for a cooler sleep experience than traditional memory foam. It is low VOC, reduces partner disturbance and relieves pressure on your joints for less tossing and turning.
With a feel that’s not too soft and not too firm, this safe mattress accommodates a wide range of comfort preferences and contains no flame-retardant chemicals.
The low-profile design of our mattresses is a perfect fit for our modern platform beds, which have support slats that eliminate the need for a box spring. Each mattress is engineered for lasting comfort without the need to flip.
Serene is a registered trademark of Carpenter Co.
See the full Encased Coil collectionWe partner with artisans and workshops across the country
Details of R&B Encased Coil with Serene Foam Mattress - Medium
Product Details
- See construction details
- Dimensions: 60"w 80"d 11"h
- Mattress Size: Queen
- Features: no-need-to-flip design; non-skid bottom
- Considerations: designed for a modern, low-profile look with our platform beds
- Compatible With: Room & Board adjustable mattress bases
- Delivery Consideration: delivery includes removal and disposal of your old mattress and box spring
- Product Origin: made in Minnesota
- Material Origin: United States
- Recycling Fee: some states charge a recycling fee
- Item Number: 476847
- See all photos
Material Details
- Cover: 100% organic cotton over non-toxic, natural fire-retardant fiber layer
- Comfort Layers: .75" CertiPUR-US® super-soft foam; 3" CertiPUR-US® Serene® foam
- Support System: 858 encased coils; 5"w CertiPUR-US® foam-encased perimeter
- Safety: no flame-retardant chemicals are used in our mattresses
- Guarantee: 120-night sleep trial, free exchange or return delivery service
- Colors may vary depending on your monitor and printer. For color accuracy, request a swatch.
Delivery
Receive unlimited items for only $99 within 100 miles of our stores or $139 anywhere else in the contiguous United States. Plus enjoy free UPS shipping on hundreds of select items. Learn more: www.roomandboard.com/delivery
Product Care
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R&B Encased Coil with Serene® Foam - Medium

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Organic cotton cover
- Certified chemical free, 100% organic cotton
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Non-toxic natural fire-retardant fiber
- No flame-retardant chemicals
- Made from wood pulp
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0.75" CertiPUR-US® certified super-soft foam
- Conventional foam for a cooler sleeping surface
- Low-VOC (Volatile Organic Compound) emissions for indoor air quality (less than 0.5 parts per million)
- Made without mercury, lead or heavy metals
- Made without PBDEs, TDCPP or TECP (“Tris”) flame retardants
- No chlorofluorocarbons (CFCs)
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3" CertiPUR-US® certified Serene® foam
- High-resiliency foam with immediate recovery
- Microscopic air capsule technology means you won't overheat
- Responds to your body for enveloping comfort and relieves pressure points
Serene is a registered trademark of Carpenter Co. -
Encased coil system
- Individually wrapped coils contour to your body for customized comfort
- Provides proper orthopedic support
- Reduces partner sleep disturbance
- 14.5 gauge high-tensile tempered wire
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5"-wide CertiPUR-US® certified foam-encased perimeter
- Maximizes available sleep surface
- Provides additional edge support
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Non-skid base
- Keeps mattress securely in place on any bed frame
Customer Reviews
Questions & Answers
More items in the Encased Coil Collection
Our promise to you
Exceptional Service, Start to Finish
We treat you the way we would like to be treated, from shopping and ordering to delivery and long-term service.
American craftsmanship
More than 90% of our products are manufactured in America using quality U.S. and imported materials. Working with family-owned companies around the country allows us to bring you the best craftsmanship and fastest delivery with the least environmental impact. It also means you get furniture with a story you'll be proud to share.
Free design services
Our Design Associates put their product expertise and passion for home design into helping you create a functional and inspiring space. Their design help is always available to you for free.
The best price every day
We set our prices on December 26 and guarantee them for a full year so you can take the time you need to find the pieces that work for you. No discount codes, no flash sales. We give you our best price every day.
Unlimited Items for One Flat Rate
Receive unlimited items for $99 within 100 miles of our stores or $139 anywhere else in the contiguous United States. Small home decor items ship for free via UPS.
Full-Service Delivery
Our respectful Delivery Associates take care of every detail. Furniture arrives fully assembled and is placed exactly where you want it with no packaging left behind.
Free Returns and Exchanges
We offer free return or exchange delivery service on any item you buy from us. We understand that it can take a few days to a few weeks to determine if your new furniture will work for you. We encourage you to make a return or exchange in a timely manner because damaged, worn or altered items may be refused or result in an adjustment to your refund.
Our Guarantee
We stand behind the quality of our products and the prices we charge. If you're not satisfied with your purchase or any part of your experience, just let us know. We're here to help.