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Soma Cube 9 Mattress

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Price: $3,299.00

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Product Overview

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The Soma Cube 9 Mattress showcases an evolutionary design in mattresses. You have the ability to not only custom the mattress from side-to-side, you also have the ability to configure the mattress from head-to-toe. The Cube 9 is quickly becoming a favourite for those who desire to fine-tune their comfort level or require temporary adjustments from time-to-time. Made from 100% organic rubber and 100% organic cotton, the Soma Cube 9 is ideal for those who sleep on their side(s) for the majority of the night.

About Soma Cube 9 Mattress

The Soma Cube 9 Mattress is the most unique mattress in our collection made by Green Sleep. It features a remarkable design of 3 + 3 + 3. Not only do you have the ability to customize each side of your mattress with a distinct comfort level, you are also able to tailor make your mattress from head-to-toe.

What is a cubed system? The middle layer in this mattress is comprised of three squares of natural rubber per side. Rather than a uniform layer of single density (firmness), the Cube 9 has three equal squares made in soft, medium and firm. This allows you to customize the firmness of the mattress for different areas of your body as well as for different circumstances. For example, you may be a side sleeper with very broad shoulders and experience discomfort from time-to-time. You would prefer your mattress to be softer, but you do not appreciate when a mattress is soft on your lower back. With the Cube 9 Mattress, you are able to place a soft density cube in the shoulder and a firm density cube in the hip section of the mattress. This allows for optimal pressure relief in the shoulder yet maintains extra support for your lower back and hips. Your mattress can be customized at any given point in time by simply re-arranging the placement of the cubes.

The Cube 9 is ideal for those who: sleep primarily on their side, are recovering from an injury, experiencing growth spurts (children and young adults), are pregnant or temporarily require a specific comfort level.

Love the design of this mattress but do not require the cubed system? Our Soma Contour 9 Mattress has a similar design without the cubed system.

All Soma Cube 9 Mattresses are Made in Canada.

Benefits of an Organic Mattress

Some of the many benefits of sleeping on an organic mattress include:

  • strengthening your immune system’s performance
  • creating an improved sleep cycle
  • avoiding harmful chemicals and adhesives
  • reducing sneezing and asthma attacks
  • regulating your body’s temperature
  • creating a non-hospitable environment for dust and dust mites
  • significantly diminish skin-related reactions
  • avoiding harmful off-gassing
  • reducing headaches related to your sleep environment
  • minimizing pressure points
  • sleeping on a completely natural surface

Product Specifications

  • 100% certified natural North Malaysian 600 dunlop rubber core (9″)
    • North Malaysia 600 is an exclusive process to Green Sleep. The rubber cores derive from their very own tree farm, which is reputed as one of the highest quality, purist and most elastic rubber available
  • 100% certified stretch organic cotton
    • Feel the rubber mould to your body with the pliable weave
  • 100% certified pure Texel virgin wool
    • Texel wool is also certified pH balanced (pH 7). This is the best type of wool fibre for those worried about skin sensitivity
  • Each individual layer of rubber is wrapped in 100% organic cotton muslin for increased longevity
  • Customization on both sides of the mattress
  • Top-zip mattress envelope (cover) with latent metal zipper finish

Customization Layers

Both sides of the mattress can be customized, or kept uniform across the mattress.

  • 9″ of natural rubber plates, which includes:
    • 3″ medium or firm natural rubber base layer, with the option of split comfort
    • Three 3″ cubed soft, medium and firm natural rubber square layers, with the option of split comfort
    • 3″ soft natural rubber top layer


  • Natural Rubber is eco-INSTITUT certified
  • Natural Wool is OEKO-TEX Standard 100, Class 1 certified
  • Organic Cotton is GOTS certified

Mattress Profile (Height)

Mattress Only: 10″ 25.4cm
Mattress Set (matching base): 24.5″ 62.2cm

Mattress Support

The Cube 9 Mattress is typically paired with the S-100 Foundation, which is available in an Organic Cotton or an Organic Linen upholstered finish.

Both mattress bases correctly support the mattress and come with removable, standard 8-inch wood legs. This mattress can be purchased with or without the matching foundation. It is very important to have adequate support and breath-ability for your mattress. Please ensure that you are using the correct type of support (“boxspring”) for your organic mattress.

Availability, Shipping & Delivery

The Cube 9 Mattress is typically made-to-order and requires between 2-3 weeks for production. While Ontario customers can expect shorter delivery times, all Canadian customers can expect delivery within 2-7 days from date of purchase (time is dependant on your location). This product qualifies for FREE shipping and handling across most locations in Canada.

Care Instructions

  • Protect your mattress with a quality mattress protector
  • Place your mattress on a firm, breathable surface
  • Use a chemical-free spot cleaner for stains
  • Do not place your mattress outside in direct sunlight
  • Avoid getting your mattress wet or keeping it in a damp environment

Product Warranty

This item is covered by Soma and Green Sleep’s 20-year warranty (10 + 10) against defects in workmanship. Soma Organic Mattresses will act on your behalf in the event of any potential warranty claim.

Please contact Soma Organic Mattresses directly.

The Soma Organic Comfort Policy

This mattress qualifies for the Soma 90-day Comfort Exchange Guarantee. Please visit our Comfort Exchange Policy directory for further details. Feel free to contact one of our friendly Sleep Consultants for further details.

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Product Return and Exchange Policy

We will accept a return, exchange or provide a full refund on any bedding item that is categorized as regularly stocked merchandise, providing that the item is unused and in the original packaging (including any product tags that were attached to the product). Every product page clearly indicates whether or not the product is typically stocked. Any return and/or refund conducted may be subject to a 10% administrative duty.

If you are unsure as to whether or not an item is returnable or exchangeable, please contact our customer service department at (1) 416-789-2337 or e-mail us at [email protected].

At Soma, we focus on the total sleep health needs of our customers by ensuring that every product leaving our shelves or shipping department is brand new and unopened. As such, we cannot accept any returns on mattresses, foundations (box springs), pillows, duvets, toppers or any other product that is deemed for personal use.

While we strive for accuracy, Soma Organic Mattresses reserves the right to make changes at any time, without prior notice, to prices, description, images and policies. Web store prices, products and promotions may differ from those in our retail store. Click here for full terms and conditions.

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Refunds, Shipping & More...

We will accept a return and provide a full refund on any bedding item that is categorized as regularly stocked merchandise, providing that the item is unused and in the original packaging including any product tags that were attached to the product.

At Soma, we focus on the total sleep health and needs of our customers by ensuring every product that leaves our shelves or shipping department is brand new!

Learn More

Contact Us

Soma Organic Mattresses
100 Bridgeland Ave, Unit C
North York, Ontario
M6A 1Z4
Toll-Free: (844) 276-2337
Local: (416) 789-2337