Skip to product information
Mariner Custom Size Mattress 9" Foam
  • Mariner Custom Size Mattress 9" Foam
Mariner Custom Size Mattress 9" Foam

Mariner Custom Size Mattress 9" Foam
$700.00
About this Mattress

Meet the Mariner!

Unique combination of features that make this mattress great:

• All Foam Construction ideal for custom sizing

• Flippable design for extended mattress life

• Available in fully custom dimensions to fit unique spaces and frames

• 10-Year Warranty for Peace of Mind

• Local Delivery, Set Up and Haul Away Available

• Foundation/Boxspring Heights – 2”, 4”, 6”, 9” Available

9 inches, Custom Foam, Flippable

The Mariner is built for flexibility, making it the perfect choice for custom dimensions. Whether you need a mattress for an antique bed, Murphy bed, boat, RV, or even a heart-shaped frame, the Mariner’s all-foam construction adapts beautifully. With over a century of craftsmanship and expertise, we’ve seen it all and can build to nearly any specification. You can also select any mattress from our lineup and request custom dimensions for an additional cost.

Custom Mattress Pricing Starting at:

  • King (4,801–6,080 sq. in.): $1,160

  • Queen (4,301–4,800 sq. in.): $1,000

  • Full (3,101–4,300 sq. in.): $930

  • Twin (up to 3,100 sq. in.): $700

For custom orders, email info@thecharlestonmattress.com or call 843-303-2478 for a consultation.
Materials + Care

At Charleston Mattress, we are committed to building every mattress with the finest U.S.-sourced materials. We carefully select components that deliver support, comfort, and durability—while also being environmentally responsible. Once crafted, we price our mattresses transparently and affordably, so more people can enjoy a better night’s sleep.

All Materials Sourced in the U.S.A.

Every material used in a Charleston Mattress® is sourced from American companies with long-standing reputations for quality and innovation.

Coils are made by Leggett & Platt in St. Louis, Missouri, using up to 95% recycled steel. Each year, nearly one million tons of scrap steel are repurposed into new mattress coils.

Renew™ Foam is produced by Carpenter Company in Richmond, Virginia, using Natural Foam Technology™. This bio-based process reduces environmental impact while maintaining the consistent performance our customers expect.

HARVEST® Foam is manufactured by Future Foam, with facilities in High Point, North Carolina, and Bluffs, Iowa. It blends natural soy-based oils with traditional polyols, supporting farmers and reducing reliance on petroleum-based materials.

Natural Latex is processed by Mountain Top Foam in Mountain Top, Pennsylvania. Their continuous-pour method keeps latex in constant motion during production, ensuring quality and preventing settling. Naturally resistant to mold and microbes, latex is also biodegradable.

Quilted Covers are crafted by Culp in High Point, North Carolina. For more than four decades, they have been leaders in upholstery fabrics. All covers meet the STANDARD 100 by OEKO-TEX® for safety and quality.

Certified Safe & Responsible

All foams used in Charleston Mattress products carry the CertiPUR-US® certification, which ensures:
All foams used in Charleston Mattress products are CertiPUR-US® certified, ensuring they are low in emissions for better indoor air quality and completely free from harmful substances. They contain no ozone-depleting chemicals, no formaldehyde or phthalates of concern, and no PBDEs or heavy metals such as lead or mercury.

Caring for Your Mattress

To protect your investment and extend the life of your mattress, rotate it regularly to encourage even wear and always use a proper foundation or frame with center support for queen and king sizes. We recommend using a breathable mattress protector to guard against spills, stains, and allergens. For cleaning, avoid harsh chemicals; instead, spot clean with mild soap and water when needed.
Delivery

Charleston Mattress offers delivery, in-home set-up, and haul-away across Charleston, Berkeley, and Dorchester Counties (SC). We’ve been doing this in the Lowcountry for over a century, and we handle every step so you don’t have to.

Friendly, experienced delivery. Our local team—led by Olin, with over 15 years of experience—has completed thousands of in-home deliveries. We place your mattress in the room of your choice, assemble as needed, and make sure you’re comfortable with your purchase before we go.

Built to order, delivered fast. Because we build when you buy, most standard sizes (Twin, Full/Double, Queen, King) are delivered within 3–4 business days. Next-business-day delivery may be available for a reasonable rush fee. Special orders and custom sizes can take up to 6 weeks.

Responsible haul-away & recycling. We partner with BedShred Mattress Recycling to dismantle and recycle old mattresses—foam becomes carpet pad, steel is recycled, and materials are diverted from landfills. If we care this much about your old mattress, imagine the care that goes into your new one.

Local pricing. Delivery and set-up in Charleston, Berkeley, and Dorchester Counties is $75. BedShred recycling/haul-away is $20 per piece (a negotiated discount for our customers). Store pickup is free; for liability reasons, we’re unable to load or secure items to your vehicle, and we do not provide ropes or straps.

Long-distance options. Outside our local counties? Email info@thecharlestonmattress.com or call 843-303-2478. We often travel throughout the Carolinas and Georgia and can quote delivery on one of our trucks. We also ship nationwide; expect freight quotes typically $500–$2,000 depending on destination and service level. Share your ZIP and we’ll price boxing and shipping.

We deconstruct the competition. Through BedShred, we see inside mattresses from online brands and national chains. Visit our store and we’ll show you how Charleston Mattress is built differently.
Try Before You Buy

Come try before you buy. Spend as much time as you need testing mattresses in our store. Visit often if you’re not quite ready to purchase—we encourage it!

Visit our store.

Charleston Mattress is located at:

1078 East Montague Avenue

North Charleston, SC 29405 (Park Circle)

Next to Azul Mexicano and across from EVO Pizzeria.

Hours:

Saturdays: Walk-in shopping 11:00 am – 5:00 pm
Monday- Friday: Open by appointment (call or text 843-303-2478)
Sunday: Closed

Phone/Text: 843-303-2478

Email: info@thecharlestonmattress.com
The Charleston Mattress Difference

The Charleston Mattress Difference

Before you buy, you’ll immediately notice the Charleston Mattress difference.

We still make flippable beds.

Both sides of our mattresses are fully finished and usable. Big brands cut corners to save money, but we believe a quality mattress should last a solid decade—likely longer.

We build your mattress when you buy it.

No overstock sitting in warehouses. Your mattress is built fresh and delivered within 3–4 business days.

Buying multiple mattresses? Nobody does it better.

Order as many as you want, in any style, size, or price point, and we’ll deliver them all together in just a few days.

Over 300 years of combined experience.

Our team knows mattresses inside and out—let our professionals handle the heavy lifting.

Family owned. Not bank owned.

We’re proud to be locally owned, community-focused, and committed to lasting quality.
Financing

Choose how you pay—at your own pace.

When inspiration strikes, Affirm helps you say yes without giving up financial control. Select Affirm at checkout to split your purchase into easy monthly payments—and never pay more than you agree to on day one.

How it works.

Fill your cart and select Affirm at checkout. Enter a few quick details for a real-time decision.

Choose the payment plan that fits your budget.

Make payments at affirm.com or in the Affirm app. You’ll receive email and text reminders along the way.

Buy with confidence.

With Affirm, you always know exactly what you’ll owe and when you’ll be done paying. No hidden fees. No surprises.

Your rate will be 0%–36% APR. For example, an $800 purchase might cost $72.21/month over 12 months at 15% APR. Payment options through Affirm are subject to eligibility and are provided by these lending partners. Options depend on your purchase amount, and a down payment may be required. CA residents: Loans by Affirm Loan Services, LLC are made or arranged pursuant to a California Finance Lenders Law license. For licenses and disclosures, see affirm.com/licenses.

FAQs

Can I pay off my purchase early?

Yes—there’s no penalty for paying early.

How do I make my payments?

You can make or schedule payments at affirm.com or in the Affirm app for iOS or Android. Affirm will send reminders before each payment is due.

Does checking eligibility affect my credit score?

Checking eligibility will not impact your credit score. If you complete a purchase with Affirm, your repayment activity may be reported to credit bureaus. Learn more at Affirm’s Help Center.

Do I need a mobile number to use Affirm?

Yes—a U.S. mobile phone number is required to create and verify your account.

Where can I learn more?

Visit affirm.com.
Return Policy

Comfort is personal. Everyone sleeps differently, which is why we strongly encourage you to visit our Park Circle showroom and try our mattresses in person before buying. Spend as much time as you need—our team will help you find the right fit for your comfort and budget.

If you’ve visited us, purchased your mattress, and still find you’re not sleeping comfortably within the first 14 nights at home, we will accept a return under the following guidelines:

Local returns (Charleston, Dorchester, and Berkeley Counties, SC).

A $175 pick-up/return fee applies.

The mattress must be in like-new condition: free of stains, tears, or soiling.

Once received, we will refund the original purchase price.

Returned mattresses are never resold as new.

Shipping returns (outside our local area).

Customers are responsible for shipping charges (typically $500–$2,000 depending on location) plus a $175 return fee.

The mattress must be in like-new condition.

Once received, we will refund the original purchase price.

Returned mattresses are never resold as new.

Custom sizes.

All custom-size orders are final sale and not eligible for return.

At Charleston Mattress’ discretion, we may work with you on an exchange or alternative purchase.
Size
Set
$700.00

A flat rate delivery fee of $75 will be added to cart at checkout.

Add an encasement and or bedframe by selecting both below!

CleanRest Pro Mattress Encasement

$95.00 USD

CleanRest Pro Mattress Encasement
$95.00 USD

Bed Frame

$75.00 USD

Bed Frame
$75.00 USD