Grand Slumber Mattress
Plush, quiet, and pressure-relieving. The Grand Slumber Mattress is our premium all-foam oversized mattress, designed for deep, undisturbed rest and long-term support.
Plush, quiet, and pressure-relieving. The Grand Slumber Mattress is our premium all-foam oversized mattress, designed for deep, undisturbed rest and long-term support.
All-Foam Comfort Built for Bigger Sleep
Experience the Grand Slumber Mattress. This oversized all‑foam sleep system is built for serious comfort, support, and long‑term value. With a resilient Foam Support Base and a flip‑over design offering both soft and firm sides, this mattress adapts to your sleep preferences. The topper layers blend latex and cooling memory foam with a plush quilted cover for pressure relief, motion isolation, and cool, calm rest through the night. We design it to pair perfectly with our bed frames, and when the topper wears down, you can refresh the feel without replacing the whole mattress.
Features & Benefits:
- Dual‑firmness switch: Flip one or both bases for a softer sleep or firmer support
- Latex + memory foam topper: Balanced contours, bounce, and temperature control
- Quilted cover: Plush feel and added comfort
- Oversized dimensions: Enjoy expansive sleep on Alaskan King, Wyoming King, Florida King, and other super king-size bed frames
- Topper replacement option: Extend your mattress life affordably
- CertiPUR‑US® certified foams, made in the USA for quality and peace of mind
Take a Look Inside the Grand Slumber Mattress
Foam Support Base
5.5” of high-density foam for a robust and resilient foundation that supports all body types and sleeping positions.
Pink Foam
A unique combination of soft, comfortable cushion with high-density durability for long-lasting support. Get the hug and bounce you need with this exclusive foam layer. When flipped up, this conforming latex-like foam acts as the “softer” side of the mattress base.
Latex
Naturally derived latex in the topper bolsters pressure relieving benefits by increasing durability and responsiveness. It reduces sinking into the mattress and guarantees smooth transitions while you sleep.
Cooling Memory Foam
The memory foam in the topper offers a blissful initial feel. It provides pressure relief for hips and shoulders without leaving impressions. Also eliminates motion transfer. Cooling properties keep you from sleeping hot.
Quilted Cover
One-inch of comfort foam quilted with plush, premium fabric to complete the mattress topper.
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American MadeOur mattresses are 100% made in the USA using American materials. We offer discounts for US veterans with proof of military service.
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Safe & SustainableAll our mattresses are CertiPUR-US® certified. They are made from natural fire retardant materials. The cover is a blend of organic cotton, cashmere, and polyester. We do not use any Ammonium Phosphates or fiberglass.
Additional Information About the Grand Slumber Mattress
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The dimensions of our different Grand Slumber Mattress sizes are:
- Wyoming King: 84” x 84”
- Texas King: 80” x 98”
- Alberta King: 96” x 96”
- Florida King: 108” x 80”
- Alaskan King: 108” x 108”
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Grand Slumber Mattresses ship independently from our bed frames. Mattresses will be scheduled for delivery within 3-5 business days of your bed. If your mattress is ordered without a bed frame, it ships out immediately.
The Grand Slumber Mattresses are delivered in three (3) separate boxes.
Grand Slumber Mattresses are not delivered by our White Glove Delivery partners. If you order White Glove Delivery for your bed frame, your Grand Slumber Mattress will still arrive on its own.
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Our Grand Slumber Mattress offers the ability to adjust for a softer or firmer sleep experience. Simply flip the base section of the mattress. Then reattach the topper to the side that you will be sleeping on. When flipped up, the Pink Foam side of the mattress provides a softer cushion. When reversed with the Foam Support Base of the mattress facing up, you’ll get a firmer feel. This can be done with one or both of the bases.
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We understand that great sleep is an important investment for anyone. To ensure that your Grand Slumber Mattress lasts a lifetime, we offer the ability to buy and replace just the topper. This allows you to continue using the same mattress base while still refreshing your sleep experience over the years. Contact us for more information.
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We designed our oversized bed frames so that you will not need to use a box spring to support your mattress. The mattress rests on durable 2x4 and 2x8 wooden slats. We recommend placing a solid surface between a memory foam mattress and the wooden slats. All Grand Slumber Mattresses ordered with a bed frame automatically ship with a ⅛” masonite board. This keeps the foam-based mattress from sinking between the slats over time.
We offer financing options to help you purchase your new bed today. Pay for your bed in monthly installments over 12, 24, or 36 months with competitive interest rates, including 0% APR* for 12 months. Apply now to see if you pre-qualify with our fast, streamlined online application.
Learn More*Availability of terms may vary based on purchase price and/or product. Down payment may be required. Subject to approval of credit application. Rates range from 0% to 29.99% APR, resulting in, for example, 36 monthly payments of $32.26 at 9.99% APR, per $1,000 borrowed. APRs will vary depending on credit qualifications, loan amount, and term. Bread Pay™ loans are made by Comenity Capital Bank, a Bread Financial™ company.
Customer Reviews
based on 107 reviews
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Verified Purchase
Steve U. from San Diego, CAAugust 13, 2026
Really solid product overall. Assembly took a bit longer than expected but the end result is great.
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Emily C. from Tampa, FLAugust 13, 2026
Very happy with the quality and design. Only giving 4 stars because shipping took a little longer than quoted, but the product itself is excellent.
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Megan O. from Tampa, FLAugust 10, 2026
We've had this for a few months now and couldn't be happier. Super sturdy, looks great, and our whole family loves it.
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Megan O. from Charlotte, NCAugust 10, 2026
We bought this for our guest room and now everyone wants to sleep in there! Fantastic product.
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Verified Purchase
David W. from Phoenix, AZAugust 09, 2026
We bought this for our guest room and now everyone wants to sleep in there! Fantastic product.
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Verified Purchase
David W. from Salt Lake City, UTAugust 04, 2026
So impressed with the quality. It arrived well-packaged and the assembly instructions were clear and easy to follow.
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Verified Purchase
Stephanie A. from Denver, COAugust 04, 2026
I was nervous ordering something like this online but it's even better than I hoped. Amazing quality.
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Nicole F. from Chicago, ILJuly 30, 2026
We bought this for our guest room and now everyone wants to sleep in there! Fantastic product.
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Verified Purchase
Sarah M. from Minneapolis, MNJuly 30, 2026
We researched for months before buying and so glad we went with this. Premium quality all around.
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Verified Purchase
Mike R. from Charlotte, NCJuly 30, 2026
Absolutely love this! The build quality is outstanding and it was easier to assemble than I expected. Highly recommend.
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Verified Purchase
James T. from Salt Lake City, UTJuly 29, 2026
We bought this for our guest room and now everyone wants to sleep in there! Fantastic product.
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Tom V. from Denver, COJuly 24, 2026
Five stars isn't enough! Solid as a rock, looks fantastic, and the whole ordering experience was smooth.
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Katie I. from Austin, TXJuly 23, 2026
Incredible product. The attention to detail in the construction really shows. We get compliments all the time.
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Verified Purchase
Chris B. from Austin, TXJuly 16, 2026
I was nervous ordering something like this online but it's even better than I hoped. Amazing quality.
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Verified Purchase
David W. from Atlanta, GAJuly 16, 2026
This exceeded all my expectations. Solid construction, beautiful finish, and it fits perfectly in our room.
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Verified Purchase
Dan N. from Boston, MAJuly 16, 2026
We bought this for our guest room and now everyone wants to sleep in there! Fantastic product.
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Verified Purchase
Amanda H. from Denver, COJuly 16, 2026
Best purchase we've made for our home. The quality is immediately apparent when you see it in person.
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Verified Purchase
Dan N. from Boston, MAJuly 15, 2026
Incredible product. The attention to detail in the construction really shows. We get compliments all the time.
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Verified Purchase
Katie I. from Denver, COJuly 15, 2026
So impressed with the quality. It arrived well-packaged and the assembly instructions were clear and easy to follow.
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Verified Purchase
Rachel L. from Chicago, ILJuly 13, 2026
So impressed with the quality. It arrived well-packaged and the assembly instructions were clear and easy to follow.
