The Turmerry Bigg+ earns its place on a short list for heavyweight sleepers because it is built around one clear promise: a 12-inch all-foam latex mattress that supports up to 1,100 pounds of total weight without sagging. Three of its four layers are extra-firm Dunlop latex in every configuration, and the fourth is your choice of medium firm, firm, or extra firm. That combination targets people above 230 pounds who have watched softer beds dip in the middle, and who want a firm, natural build with no fiberglass, no chemical flame retardants, and no PU foams. It is listed at $1,299.00 with free shipping across the US, a 120-day trial, and a 20-year warranty.
This review is part of our guide to the best innerspring mattresses, where the strongest models are compared side by side.
Our pick
Saatva Classicthe innerspring alternative for heavyweight sleepers who want a spring feel and a longer trial
- 365-night home trial
- Free white-glove delivery and old-mattress removal
- Lifetime warranty
- Firm comfort level rated for heavier body types
What is the Turmerry Bigg+ and who is it for?
The Turmerry Bigg+ is a 12-inch, all-foam latex mattress designed for heavyweight sleepers above 230 pounds. The brand lists a total weight support figure of up to 1,100 pounds and describes the build as eco-friendly, sag-free, and free of toxic off-gassing, chemical flame retardants, fiberglass, and PU foams. The mattress is aimed squarely at people who find standard beds too soft. Turmerry states that the support core contains multiple extra-firm Dunlop latex foam layers built to handle heavyweight sleepers without sagging. The company also notes that Dunlop latex is denser, firmer, and more durable than Talalay latex, which is why it is used here as the heavy-duty material. If you weigh above 230 pounds, or you share the bed with a partner whose combined weight approaches the upper end of the stated limit, this is the profile the product was engineered for. Lighter sleepers may find the extra-firm core layers more rigid than they need, so firmness preference matters as much as body weight here.
What does the Bigg+ actually contain, layer by layer?
From bottom to top, the 12-inch Bigg+ consists of three 3-inch extra-firm Dunlop latex layers, topped by a fourth 3-inch layer whose firmness depends on the option you choose. The top comfort layer is 3 inches thick and is described as cushioning the body while providing just the right amount of give. The brand offers three firmness builds for the 12-inch model:
- Medium Firm: three extra-firm layers plus a 3-inch medium firm top layer
- Firm: three extra-firm layers plus a 3-inch firm top layer
- Extra Firm: four extra-firm layers throughout
Two natural New Zealand wool layers add fire resistance and temperature regulation, and the cover is a soft, zippered organic cotton that opens to let you swap or rearrange the internal layers. Assembly, according to the brand, takes about 20 to 30 minutes: place the extra-firm base layer in the cover first, add the two middle extra-firm layers, then set the final medium, firm, or extra-firm layer on top and zip the cover closed.
The mattress also uses a 7-zone support design. Turmerry describes firmer support for the head and feet, medium-firm support for the upper back, lower back, and hip, and softer comfort for the shoulder and thigh, all intended to balance pressure relief with contouring.
How firm is the Bigg+ and what does support look like?
The Bigg+ is positioned as a firm build for heavyweight sleepers, with three of its four layers rated extra-firm in every configuration. The brand states that the combination of firmly supportive core layers and a contouring, cushioning top layer works to relieve pressure points, particularly for heavyweight sleepers, and that the mattress evenly distributes weight to reduce strain and promote improved spinal alignment. Because the top layer can be specified as medium firm, firm, or extra firm, the final feel is a choice rather than a fixed rating. The zippered cover makes that choice reversible after delivery, which is unusual and worth noting if you are unsure where your preference sits.
According to the official specifications, the support core is built to handle heavyweight sleepers without sagging, and the high-density Dunlop latex layers are described as resisting wear and tear over time. The brand contrasts this with mattresses that lose their shape or begin sagging within a few years, stating the Bigg+ is built to keep its form year after year.
| Spec | Documented figure |
|---|---|
| Thickness | 12 inches |
| Layer build | Four 3-inch Dunlop latex layers |
| Total weight support | Up to 1,100 pounds |
| Target sleeper | Above 230 pounds |
| Firmness options | Medium Firm, Firm, Extra Firm |
| Support design | 7-zone |
| Trial | 120 days |
| Warranty | 20 years |
| Shipping | Free across the US |
| Listed price | $1,299.00 |
See the Saatva Classic price in your size →
How does the Bigg+ handle heat and cooling?
Turmerry states that the latex foam layers are expertly perforated and that the perforated, open-cell structure allows air to circulate freely. The two natural New Zealand wool layers are described as temperature-regulating, and the brand says the mattress thermostats itself, staying cool in summer and cozy when it is chilly. Cooling performance depends on your room temperature, bedding, and body type, so treat these statements as the manufacturer’s description of the materials rather than a measured result.
Do the motion isolation and edge support claims hold up on paper?
The brand lists both properties directly. Turmerry states that the latex foam layers are fantastic at isolating motion, so one partner tossing and turning does not wake the other, and that the firm latex layers provide excellent edge support, giving more usable space and a secure feeling when sitting or sleeping near the edge. These are documented claims from the manufacturer, not independent test results. If edge support is critical for you, for example if you sit on the side of the bed to put on shoes or sleep close to the edge, confirm the current wording on the official page and check the return window before deciding.
What are the Bigg+ trial, shipping, and warranty terms?
The Bigg+ ships free across the US and comes with a 120-day trial period and a 20-year warranty, according to the official product page. The brand also lists a fall mattress sale of 15 percent off sitewide with a free shipping coupon, plus bundle savings of up to 25 percent, though promotions change and the current price should be checked on the official site. The base price shown on the product page is $1,299.00 with free shipping. Turmerry also runs a loyalty program tied to the purchase, listing 2,598 points earned and $50 toward a future purchase.
Who should buy the Turmerry Bigg+?
The Bigg+ is built for sleepers above 230 pounds who want an all-foam latex bed with a firm, sag-resistant core. It suits you if you prefer a 12-inch mattress with a zippered cover that lets you change the top layer firmness after delivery, and if you want a 120-day trial and a 20-year warranty on a natural latex build with no fiberglass, no chemical flame retardants, and no PU foams. It also fits shoppers who value a 7-zone layout that varies firmness across head, back, hip, shoulder, and thigh, and who want free shipping across the US on a mattress listed at $1,299.00. It is a reasonable match for couples who care about motion isolation and edge support, since the brand lists both as properties of the firm latex layers. If your combined weight sits near the 1,100-pound total support figure, the extra-firm Dunlop core is the part of the design doing the heavy work, and that is the specification to weigh most carefully.
Who should NOT buy the Turmerry Bigg+?
Skip the Bigg+ if you want a soft, plush, body-hugging feel, because three of its four layers are extra-firm in every configuration and the fourth is medium firm at its softest. It is also the wrong pick if you need a mattress delivered and set up by a crew, since the official page describes free shipping and a 20 to 30 minute self-assembly rather than white-glove service. Lighter sleepers under 230 pounds may find the build over-supportive, and anyone who wants a spring or hybrid feel should look elsewhere, since the Bigg+ is described as an all-foam latex mattress. If a 120-day trial feels short for a firm latex bed you are adjusting to, that is a legitimate reason to hold off until you have compared the current terms on the official page.
How does the Saatva Classic compare as an alternative?
The Saatva Classic is an innerspring mattress with a dual-coil design of triple-tempered recycled carbon steel coils and a 3-inch Euro pillow top. It is offered in three comfort levels: Plush Soft (3/10), Luxury Firm (5-7/10), and Firm (8/10), with the brand describing Firm as best suited for stomach and back sleepers or heavier body types. Saatva lists a 365-night home trial, free white-glove delivery with in-room setup and old-mattress removal, and a lifetime warranty for the original purchaser. One concrete difference stands out: a 365-night home trial versus the Bigg+’s 120 days. The Classic also carries CertiPUR-US certified foams, GREENGUARD Gold certification, and an endorsement from the American Chiropractic Association, and it features patented Lumbar Zone Technology for spinal alignment. The choice between the two comes down to build and service: an all-foam latex bed you assemble yourself in 20 to 30 minutes, or an innerspring mattress delivered and set up by a crew.
World Sleep Almanac score: 7.6/10
Criteria: price at equal size, trial and returns, warranty length, materials and construction, and public customer reviews. The score is an editorial judgment based on those criteria, not a laboratory test result.
Verdict: The Turmerry Bigg+ is a focused product that does one job well: it gives heavyweight sleepers above 230 pounds a firm, sag-resistant latex build rated to 1,100 pounds of total weight, with a zippered cover that lets you change the top layer feel after delivery. At $1,299.00 with free shipping, a 120-day trial, and a 20-year warranty, it is a strong value for shoppers who want natural materials and a firm core. It is the wrong choice for anyone chasing a plush, body-hugging feel or a spring-based bounce, and it asks you to assemble it yourself rather than relying on a delivery crew.
A useful companion to this page: our Turmerry organic kids review.
Frequently asked questions
Is the Turmerry Bigg+ suitable for couples with different body weights?
The mattress is designed for heavyweight sleepers above 230 pounds, and the brand lists a total weight support figure of up to 1,100 pounds, so a couple whose combined weight sits well inside that figure is within the intended range. The 7-zone design varies firmness across head, back, hip, shoulder, and thigh, which is meant to give each body part a different level of support. Turmerry also states that the latex foam layers isolate motion, so one partner’s movement does not disturb the other. If one partner is much lighter and prefers a softer feel, the extra-firm core layers may read as over-supportive for them.
Can I change the firmness after the mattress arrives?
Yes. The cover is a soft, zippered organic cotton that opens to let you swap or rearrange the internal layers, and the top layer is available in medium firm, firm, or extra firm. The brand describes assembly as taking about 20 to 30 minutes, with the extra-firm base layer placed in the cover first, the two middle extra-firm layers added on top, and the final layer set at the top before the cover is zipped closed. That structure means you can adjust the top layer feel after delivery rather than being locked into a single firmness.
Does the Bigg+ contain fiberglass or chemical flame retardants?
No. The brand states that the mattress has no toxic off-gassing, no chemical flame retardants, no fiberglass, and no PU foams. Fire resistance comes from two natural New Zealand wool layers, which the brand also describes as temperature-regulating. The comfort and support layers are Dunlop latex foam, and the cover is organic cotton.
What bed frame works with the Bigg+?
For slatted bed frames, the brand states that the space between the slats should be no more than 3 inches apart. Since the Bigg+ is an all-foam latex mattress with a 12-inch profile and four 3-inch layers, a base that supports the full surface evenly helps the extra-firm core do its job. Check your current frame’s slat spacing before ordering.
How does the 120-day trial work compared with longer trials?
Turmerry lists a 120-day trial period on the official product page, which is shorter than the 365-night home trial Saatva lists for the Saatva Classic. A 120-day window gives you roughly four months to decide whether a firm latex bed suits your body, which is a reasonable period for most sleepers but may feel tight if you are adjusting to an extra-firm build for the first time. Compare the current terms on both official pages before you commit.
Reviewed by the World Sleep Almanac editorial team. Updated 2026.