Generic illustration · not a product photograph

Engineered Sleep

Duo Epic

Name: Engineered Sleep Duo Epic
Brand: Engineered Sleep

Best for: Texas, Wyoming and Alaskan kings

A three-piece coil mattress in nine oversized sizes, including 80″ × 98″ Texas king, 84″ × 84″ Wyoming king and 108″ × 108″ Alaskan king, with five comfort tops.

Good to know: It can't be returned: no sleep trial, just one comfort exchange, and no cancelling after production starts.

Type: Hybrid
Height: 13″ or 14″ or 15″
Sizes: 9 ready-made

Your size

108 × 108 in · 13″ or 14″ or 15″ tall

Where to get it

engineeredsleep.comOrder online · delivered to you See price

Returns: No 100-night trial (treated as a custom mattress); one comfort exchange allowed between night 30 and night 45. 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

Texas, Wyoming and Alaskan kings

Good

A three-piece coil mattress in nine oversized sizes, including 80″ × 98″ Texas king, 84″ × 84″ Wyoming king and 108″ × 108″ Alaskan king, with five comfort tops.
5 firmness choices: Duo Latex, Duo Latex Plus, Duo Memory, Duo Memory Plus, Duo Performance
Trial: No 100-night trial (treated as a custom mattress); one comfort exchange allowed between night 30 and night 45. Orders can't be cancelled once production starts.
Height: 13″ or 14″ or 15″

Think about

It can't be returned: no sleep trial, just one comfort exchange, and no cancelling after production starts.
No owner reviews we could verify yet

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 independent owner reviews naming this Engineered Sleep model were found.

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

none found Sample: 0 owner reports.

Owner comments were not searched beyond the brand site.

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

Every size it comes in

Alaskan king108 × 108 in13″ or 14″ or 15″Wyoming king84 × 84 in13″ or 14″ or 15″Texas king80 × 98 in13″ or 14″ or 15″Texas King (98 × 80)98 × 80 inAs listed Alberta King (96 × 96)96 × 96 inAs listed Florida King (108 × 80)108 × 80 inAs listed Alaskan King Shorty (108 × 84)108 × 84 inAs listed Family Bed (120 × 80)120 × 80 inAs listed Family Bed XL (144 × 84)144 × 84 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.

How it compares

Beside the most similar mattresses from other brands.

	Duo EpicEngineered Sleep	Big Mattress ClassicBig Mattress Co.	Big Mattress PremierBig Mattress Co.	Giant Bed (Alaskan, Texas, Wyoming, Alberta King; Family Bed; Athlete Bed)Mattress Insider
Type	Hybrid	Foam or air-pod hybrid	Foam or air-pod hybrid	Hybrid
Queen price	—	—	—	—
Height	13″ or 14″ or 15″	12″	13″	13.5″
Trial	100 nights	100 nights	100 nights	See terms
Odd sizes	3	3	3	3
Expert reviews	None yet	2	1	None yet

What’s inside

1Organic cotton cover
2Comfort top (one piece): natural latex, memory foam, memory foam + latex, or two HR foams
3Duo Support (two halves): 1.5″ HR foam + pocketed coils, flippable

Feel: Duo Latex, Duo Latex Plus, Duo Memory, Duo Memory Plus, Duo Performance
Height: 13″ or 14″ or 15″
Custom sizes: Not offered for this model

Complete the bed

Odd sizes need everything else in the same inches. Here’s what we have for this mattress’s odd sizes.

Alaskan king · 108 × 108

Wyoming king · 84 × 84

Texas king · 80 × 98

Returns and ordering

Trial and returns

No 100-night trial (treated as a custom mattress); one comfort exchange allowed between night 30 and night 45. Orders can't be cancelled once production starts.

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?

An oversized mattress in three pieces: a one-piece comfort top over a Duo Support base made in two halves, held together by the brand's CLING attachment. Each support half is pocketed coils plus 1.5″ HR foam, with a slightly softer 'AdaptFoam' side and a firmer side, so each half can be flipped to a different feel. Comfort tops: 2″ (Latex, 13″) or 3″ (Latex Plus, 14″) natural latex, 6–8 or 5–7 out of 10 on Engineered Sleep's scale; 2″ memory foam (Memory, 13″, 6–8 out of 10); 2″ memory foam plus 2″ natural latex (Memory Plus, 15″, 3–5 out of 10); or 1.5″ Avena HR foam over 1.5″ Serene HR foam (Performance, 14″, 4–6 out of 10). Organic cotton cover. Ships in 3 boxes.

How firm is it?

Duo Latex, Duo Latex Plus, Duo Memory, Duo Memory Plus, Duo Performance That’s the maker’s description; we haven’t measured it.

Which sizes and heights can I get?

9 sizes, 13″ or 14″ or 15″. 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 were not searched beyond the brand site.

Where did this information come from?

Checked 2026-10-28. Specs and terms can change.