Description
The Blake Geo-Matrix G3 is a non-powered gel and foam mattress, 36 by 80 in and 7 in high, rated 300 lbs (136 kg). Gel at the head, coccyx and heel gives pressure relief without a pump or an outlet.
How is it built?
- A dual-density foam base carries a 5 lb memory foam core inside a firm perimeter.
- Blue gel covers the head and coccyx; two purple layers sit inside the coccyx zone.
- Pillowtop gel at the heel protects a second high-risk point.
- The gel columns share load with their neighbours as the body settles.
- No pump, hose or calibration, so a power cut changes nothing.
Who is it for?
- Blake labels it for prevention and healing of stage I to IV pressure injuries that are not complex, from reddened skin through to a wound that reaches the bone.
- A nurse, doctor or therapist should assess skin, mobility and positioning before choosing it.
- It suits a fixed bed already measured for a 36 by 80 in surface.
- For moisture, a low air loss mattress manages it; this is a dry surface.
Will it fit the bed?
- Standard 36 by 80 by 7 in (91 by 203 by 18 cm), maker code G33680.
- Blake also lists 39, 42, 54 and 60 in widths; a wider deck needs a different code.
- 300 lbs (136 kg) is the mattress rating; the bed frame's own safe working load applies if it is lower.
- At 7 in high, check the rail gaps. Health Canada recommends under 120 mm (4 3/4 in) within and under the rail, and under 60 mm (2 3/8 in) at the rail ends. See bed rails.
- A mattress that has touched skin cannot be returned. Measure the deck first and read the return policy.
What is the cover like?
- 4-way stretch, antimicrobial, fluid proof and wipeable, with a nylon quilting layer.
- Wipe it down; no machine-wash cycle is published.
- Check the quilting, the seams and the gel surface at each linen change.
How does it compare?
- Geo-Matrix G2: a 6 in gel and foam mattress with coccyx and sacrum gel plus pillowtop gel at the heel and shoulder.
- Geo-Matrix G1 Dual Zone: gel at the coccyx and heels, for prevention.
- Fusion 4K: powered low air loss when the care team wants active therapy.
- Gel mattresses: the rest of the range.
Frequently asked questions
Is the G3 an overlay?
No. It is a full 7 in mattress with gel and foam layers inside its cover. A Geo-Matrix gel overlay is a separate pad that sits on another mattress.
Does it need power?
No. There is no pump, so nothing stops during a power failure and there is no pressure setting to adjust.
Can it hold 500 lbs?
The standard G3 is rated 300 lbs (136 kg). Do not assume a higher rating for a custom width; confirm the build in writing first.
Is this the 6 inch G3?
This is the 7 in standard build at 36 by 80 in. Blake also makes a 6 in custom-size G3 in six widths; tell us the bed and we confirm which build and code fit.
Funding may help: see who may help pay. Warranty terms are in the Warranty tab.
Specifications
- Weight capacity
- 300 lbs (136 kg) for the standard build
- Construction
- Dual-density polyurethane foam base with a 5 lb memory foam core
- Cover
- 4-way stretch, antimicrobial, fluid proof, wipeable, with a nylon quilting layer
- Cover care
- Wipeable; no machine-wash cycle is published
- Edge support
- Firm foam perimeter
- Power
- None required; no calibration
- Mattress width
- 36 in standard; 39, 42, 54 and 60 in made to order
- Mattress length
- 80 in (203 cm)
- Mattress height
- 7 in (18 cm)
- Intended use
- Prevention and healing of stage I to IV non-complex pressure injuries
- Maker code
- G33680 for 36 x 80 in; G3 plus width and length for other sizes
- Gel zones
- Blue gel at the head and coccyx, two purple gel layers in the coccyx, pillowtop gel at the heel
- Warranty
- 5 years on the mattress, 1 year on the cover
- Product type
- Non-powered gel and foam mattress
Figures from the manufacturer. Options and seat sizes can change them; we confirm yours before ordering.
Documents
Delivery and service
Delivery and setup
We deliver and set up equipment across Toronto and the GTA, and show you how everything works. Custom and special-order products can take longer; we confirm timing with you before delivery.
Service and repairs
Our technicians service what we sell, at home or in our shop.
Try before you buy
Visit a showroom in Etobicoke or Brampton to try products first, or book a free home assessment.
Warranty
Warranty details
Blake Medical gives the Geo-Matrix G3 gel mattress (G3, seven inch build) the warranty periods below. The full written terms come with the product.
- Mattress: 5 years.
- Cover: 1 year.
Compare similar products
Other models worth a look before you decide.
Questions about this product?
Talk to our team, try it in a showroom, or book a free home assessment. We help with sizing and funding.










