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Images: Diamond Mattress. Shown size and configuration may vary.

Diamond Mattress

Ethos Hybrid

Name: Diamond Mattress Ethos Hybrid
Brand: Diamond Mattress

Best for: Latex hybrid, three feels

A 13″ organic cotton and Talalay latex hybrid over pocketed coils, in Plush, Medium or Firm.

Good to know: Returns cost $99 and are limited to one per household.

Type: Latex hybrid
Height: 13″
Sizes: 6 ready-made
Certified: CertiPUR-US, GREENGUARD Gold, GOTS

Your size

38 × 75 in · 13″ tall

Where to get it

diamondmattress.comQueen $2,199 (sale price) · checked Oct 17 See price
Organic · Natural latexGOTS; natural Talalay Lists

Returns: 120 nights from delivery; one return or exchange; $99 fee deducted from refund 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

Latex hybrid, three feels

Good

A 13″ organic cotton and Talalay latex hybrid over pocketed coils, in Plush, Medium or Firm.
3 firmness choices: Plush, Medium, Firm
Trial: 120 nights from delivery; one return or exchange; $99 fee deducted from refund
Height: 13″

Think about

Returns cost $99 and are limited to one per household.
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

Twin38 × 75 in13″Twin XL38 × 80 in13″Full · 54-inch54 × 75 in13″Queen60 × 80 in13″King76 × 80 in13″California king72 × 84 in13″

Taken from the maker’s size options, in the inches it publishes. Tap a size to compare every mattress made in it.

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	38 × 75	$1,699 sale	See it
Twin XL	38 × 80	$1,799 sale	See it
Full	54 × 75	$2,099 sale	See it
Queen	60 × 80	$2,199 sale	See it
Cal King	72 × 84	$2,699 sale	See it
King	76 × 80	$2,699 sale	See it

How it compares

Beside the most similar mattresses from other brands.

	Ethos HybridDiamond Mattress	Eco Organic MattressAvocado	Extra Firm MattressAvocado	Green MattressAvocado
Type	Latex hybrid	Latex hybrid	Latex hybrid	Latex hybrid
Queen price	$2,199	$1,599	$2,599	$1,999
Height	13″	10″ or 13″	10″	11.5″ or 11″ or 13″
Trial	120 nights	100 nights	365 nights	365 nights
Odd sizes	None	None	None	None
Expert reviews	None yet	4	2	6

What’s inside

1Quilted GOTS-certified organic cotton and wool cover
2Natural Talalay latex (Oeko-Tex)
3High-density comfort foams
47-Series pocketed coils with Dynamic Edge perimeter

Feel: Plush, Medium, Firm
Height: 13″
Custom sizes: Not offered for this model

Returns and ordering

Trial and returns

120 nights from delivery; one return or exchange; $99 fee deducted from refund

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?

Eco-minded latex hybrid: quilted organic cotton cover with wool, Oeko-Tex certified natural Talalay latex, high-density comfort foams, and 7-Series pocketed coils with a Dynamic Edge reinforced perimeter. Diamond says the coils use recycled steel.

How firm is it?

Plush, Medium, Firm That’s the maker’s description; we haven’t measured it.

Which sizes and heights can I get?

6 sizes, 13″. 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.