Springwall True North Elite Whiteshell 12-Inch Pocket Coil Mattress
Springwall True North Elite Whiteshell 12-Inch Pocket Coil Mattress
New customer offer
$100 off your first order
Description
Description
The Springwall True North Elite Whiteshell is a 12-inch tight top mattress built on 1,800 individually wrapped pocket coils in seven ergonomic zones, and it comes in two feels. Choose Firm for a 1-inch layer of high-density firm comfort foam, or Plush for the same layer in a softer foam. Both versions add a 1-inch layer of breathable Airways foam and a graphite gel memory foam layer under an extra cold touch fabric, so the surface stays cool through the night. The coil unit is foam encased for a solid edge and the zoning keeps your spine aligned whatever position you sleep in. It ships compressed in a box and expands within about an hour. Springwall has been building mattresses in Canada since 1949 and is the country's largest family-owned, Canadian-owned mattress manufacturer, with factories in Toronto, Calgary and Moncton.
Who This Mattress Is For
Pick Whiteshell Firm if you sleep on your back or stomach, are heavier, or have been told to sleep on a firm surface; it is one of the firmest beds in the collection while still cushioning pressure points. Pick Whiteshell Plush if you sleep on your side or simply like a softer top over serious coil support. Both are well suited to couples, hot sleepers, and anyone with back pain who wants a mattress designed around spinal alignment.
Features
- Two feels in one model: Firm or Plush, each with a 1-inch high-density comfort foam layer under a quilted tight top
- 1,800 seven-zone pocket coils, individually wrapped and foam encased, for targeted support and a strong edge
- Cold touch sleeping surface fabric pulls heat away from the body
- Graphite gel memory foam layer conducts heat away and regulates temperature
- 1-inch breathable Airways foam for airflow and quick response
- Two half-inch polyfibre insulator pads for durability
- Chiropractic embroidered cover; designed to promote correct spinal alignment
- Works on platform beds, box springs, slatted bases and adjustable bases
- Compressed, rolled and shipped in a Springwall box; expands within about an hour
- Made in Canada by Springwall, family-owned Canadian mattress maker since 1949
Dimensions
- Twin: 99 cm (39") width x 191 cm (75") length x 30 cm (12") height
- Twin XL: 99 cm (39") width x 203 cm (80") length x 30 cm (12") height
- Double: 137 cm (54") width x 191 cm (75") length x 30 cm (12") height
- Queen: 152 cm (60") width x 203 cm (80") length x 30 cm (12") height
- King: 193 cm (76") width x 203 cm (80") length x 30 cm (12") height
Specifications
| Brand | Springwall |
| Collection | True North Chiropractic Elite |
| Mattress Type | Hybrid pocket coil, tight top |
| Feel | Firm or Plush |
| Profile | 30 cm (12") |
| Support Core | 1,800 seven-zone pocket coils, foam encased |
| Insulator | Two 1/2" polyfibre pads |
| Comfort Layers | 1" high-density comfort foam (firm or plush), 1" Airways breathable foam, graphite gel memory foam |
| Cover | Extra cold touch fabric, chiropractic embroidery |
| Shipping | Compressed and roll-packed in a box |
| Compatible Bases | Platform, box spring, slats, adjustable base |
| Sizes | Twin, Twin XL, Double, Queen, King |
| Country of Manufacture | Canada |
Measurement
Measurement
Dimensions
Shipping & Delivery
Shipping & Delivery
Each of our products is made-to-order and handcrafted. We do not mass-produce anything. Every piece is made with care and takes time and skill to create. We hope you enjoy your product, as it will be a truly unique piece.
Estimated Delivery Time
1-2 weeks
(This estimate reflects the specific crafting and fulfillment time for this item.)
Returns & Warranty
Returns & Warranty
Returns & Exchanges — 30 Days
If you're not completely satisfied, return or exchange your order free of charge within 30 days. No stress, no complicated process.
1-Year Warranty
Every piece is covered against defects in materials or workmanship for one year. If something isn't right, we'll repair or replace it — no questions asked.
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The Altera Experience
See it in your room before you buy.
Take a photo of your room or upload one, and our AI will place this product in your space so you can see exactly how it looks before you buy.
Free delivery
No minimums & no surprises at checkout.
Online support
Available 24 hours a day, 7 days a week.
100% money back
Exchange or return items free of charge within 30 days.
Flexible payment
Break your purchase into smaller, manageable payments.
No showroom. No markups. Just high-quality furniture.
Traditional furniture retail layers cost upon cost before a piece ever reaches your home. Showrooms, warehouses, distributors, and sales staff all add to the final price you pay. At Altera, we took a different approach entirely. By operating 100% online with no physical stores and no middlemen, we eliminate those hidden markups and pass the savings directly to you. Every dollar you spend goes toward the quality of the furniture itself, not the overhead behind it.
Too many people settle for cheap, disposable furniture that needs replacing every few years, and that cycle is not just costly, it is wasteful. At Altera, we believe your home deserves better. Every piece in our collection is crafted with premium materials and built to stand the test of time, so you buy once and enjoy it for decades. Choosing quality furniture is not just a smarter financial decision, it is a more responsible one. Less waste, less consumption, and a home filled with pieces that actually last. With Altera, you never have to choose between doing right by your home and doing right by the planet.
Frequently Asked Questions
How long does shipping take?
How long does shipping take?
Because every Altera piece is custom-made for you, production times vary by product. To find the estimated delivery date for a specific item, simply go to the product page and click the + next to "Shipping" to expand the section. You'll always know exactly what to expect before ordering.
This made-to-order process is what allows us to eliminate warehouses, reduce overhead, and offer significantly better pricing than traditional retailers while still delivering high-quality, thoughtfully designed products straight to your home.
Can I see the product dimensions?
Can I see the product dimensions?
All dimensions are listed on each product page. Simply scroll click the + next to "Dimensions" to expand the section. We encourage you to measure your doorways, hallways, stairwells, and elevators before your order arrives to ensure a smooth and stress-free delivery. If you have any questions about sizing, don't hesitate to reach out via support@alterahomedesign.com.
Do I need to assemble my furniture?
Do I need to assemble my furniture?
Most Altera pieces arrive largely assembled, unlike flat-pack furniture from large retailers where assembly can take hours. You won't find hundreds of pieces and a confusing instruction booklet in your box. In some cases, assembly is minimal; think attaching a few frame pieces or screwing on legs. A basic screwdriver is all you'll need.
If you'd prefer to skip the assembly entirely, we also offer a White Glove delivery service. Our team will bring your furniture into the room of your choice, assemble everything, and remove all packaging for a small additional fee. Simply select this option at checkout.
For any questions, feel free to contact us at support@alterahomedesign.com or reach out via our live chat.
What is your refund policy?
What is your refund policy?
We offer a 30-day refund policy on all eligible items.
If for any reason you are not satisfied with your purchase, simply contact us within 30 days of receiving your order, and our team will guide you through the return process.
Please note that because our products are made to order, some custom items may require special handling. Our support team will be happy to clarify any details at support@alterahomedesign.com.
Do you ship internationally?
Do you ship internationally?
Yes! We ship throughout North America, and we're happy to accommodate international orders as well. No matter where you are in the world, we'll do our best to get your Altera pieces to you.
If you're outside North America, simply reach out to us via our live chat or at support@alterahomedesign.com with your location and postal/ZIP code, and we'll get back to you with availability and a shipping quote.
We're committed to making Altera accessible wherever you call home. 🌍
What payment methods do you accept?
What payment methods do you accept?
Altera accepts all major payment methods to ensure a smooth and secure checkout experience. You can pay using Visa, Mastercard, American Express, and PayPal. We also support many debit cards and digital wallet options, depending on your location. With Shop Pay, you also have the flexibility to split your purchase into 4 to 12 payments.
Our goal is to make your purchase experience as easy and convenient as possible.
Can I modify or cancel my order?
Can I modify or cancel my order?
To modify or cancel your order, please contact us as soon as possible via our live chat or at support@alterahomedesign.com. Since every Altera piece is made to order, we recommend reaching out quickly before your item enters production.
