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Images: Obasan. Shown size and configuration may vary.

Obasan

The Grand Organic Mattress

Name: Obasan The Grand Organic Mattress
Brand: Obasan

Best for: Deepest custom latex

A 12″ zoned organic latex bed plus a 3.5″ topper, 15.5″ in all.

Good to know: Sold only through a consultation, and it's final sale with one comfort exchange.

Type: Latex
Height: 12″ or 15.5″
Sizes: 6 ready-made
Certified: GOLS, GOTS
Weight (queen): 194 lb

Your size

54 × 75 in · 12″ or 15.5″ tall

Where to get it

obasan.comQueen $7,199 · checked Oct 17 See price
OrganicGOLS, GOTS See the list

Returns: Return and comfort-exchange terms are in Obasan’s refund policy; check them before you order. Details

We may earn a commission if you buy. Check the price for your exact size and height on the seller’s site.

The short version

Worth a look if

Deepest custom latex

Good

A 12″ zoned organic latex bed plus a 3.5″ topper, 15.5″ in all.
2 firmness choices: Custom zoned firmness per sleeper, Base layer Medium, Firm, or dual-split
Trial: Return and comfort-exchange terms are in Obasan’s refund policy; check them before you order.
Height: 12″ or 15.5″

Think about

Sold only through a consultation, and it's final sale with one comfort exchange.
No owner reviews we could verify yet
Standard sizes only: no RV, odd or custom sizes listed

Based on the maker’s published specs and terms, and the owner reviews linked below. We haven’t slept on it. Something wrong? Tell us.

What owners say

No owner reviews we can verify yet A small set of real reviews, each linked to its source. Not a star rating.

No owner feedback we can use yet.

What people liked

No supported praise summary in the sample.

What to weigh up

No substantive concern verified in this small sample. This is a gap in the evidence, not proof of no drawbacks.

Sources & sample limits

No usable owner sources. Sample: 0 owner reports.

Owner comments gathered from Reddit via RedditRecs were removed: RedditRecs and Reddit ask automated tools not to collect their content.

Research checked October 14, 2026. These are sourced observations, not our own product tests or a star rating.

Every size it comes in

Full · 54-inch54 × 75 in12″ or 15.5″Queen60 × 80 in12″ or 15.5″King76 × 80 in12″ or 15.5″California king72 × 84 in12″ or 15.5″Twin39 × 75 inAs listed Twin XL39 × 80 inAs listed

Taken from the maker’s size options, in the inches it publishes. Tap a size to compare every mattress made in it. Sizes marked “as listed” don’t exactly match a standard size, so check your frame.

Price for every size

From the maker’s site on Oct 26, 2026. Prices change often, so check before you buy.

Size	Inches	Price
Twin XL	39 × 80	$4,319	See it

How it compares

Beside the most similar mattresses from other brands.

	The Grand Organic MattressObasan	Luxury Organic MattressAvocado	Classic REM5 Active Organic MattressEssentia	Dormeuse REM9 Active Organic MattressEssentia
Type	Latex	Latex hybrid	Latex	Latex
Queen price	$7,199	$4,799	$5,099	$9,799
Height	12″ or 15.5″	13.25″ or 14″ or 15″	10″	10″
Trial	See terms	365 nights	120 nights	120 nights
Odd sizes	None	None	None	None
Expert reviews	None yet	3	1	None yet

What’s inside

1Removable 3.5in organic wool and latex topper
2GOTS organic cotton and wool encasement
3Comfort top latex layer
4Modular zoned latex layers (more than Classic/Deluxe)
5Organic latex base: Medium, Firm or dual-split

Feel: Custom zoned firmness per sleeper, Base layer Medium, Firm, or dual-split
Height: 12″ or 15.5″
Custom sizes: Not offered for this model

Returns and ordering

Trial and returns

Return and comfort-exchange terms are in Obasan’s refund policy; check them before you order.

Before you order

Measure inside the frame, not the old mattress
Check clearance above for the height you pick
Make sure your base supports it
Buy sheets in the same exact size

Questions

What is it made of?

Obasan's top custom latex bed: 12in of GOLS-certified organic latex with more layers in the modular zoned system, a Medium, Firm or dual-split base, and a removable 3.5in organic wool and latex topper (15.5in total). Sold only through a consultation.

How firm is it?

Custom zoned firmness per sleeper, Base layer Medium, Firm, or dual-split That’s the maker’s description; we haven’t measured it.

Which sizes and heights can I get?

6 sizes, 12″ or 15.5″. See every size. Confirm your exact size and height with the seller.

Are the reviews about this exact mattress?

No owner reviews we can verify yet. Owner comments gathered from Reddit via RedditRecs were removed: RedditRecs and Reddit ask automated tools not to collect their content.

Where did this information come from?

Checked 2026-10-17. Specs and terms can change.