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Images: Helix. Shown size and configuration may vary.

Helix

Dusk

Name: Helix Dusk
Brand: Helix

Best for: Medium feel, extra support

An 11.5″ medium hybrid with a lumbar support layer, also in Short Queen and RV King.

Good to know: The newest page copy available is from May 2026; check the live site.

Type: Hybrid
Height: 11.5″
Sizes: 8 ready-made

Firmness, according to reviewersMedium firm

Pick it if

You sleep on your back
You sleep on your stomach
You’re a heavier person
You sit on the edge or use all of it

Skip it if

You sleep on your side

From independent reviewers’ findings, credited below.

Your size

72 × 80 in · 11.5″ tall

Where to get it

helixsleep.comOrder online · delivered to you See price
For heavier peopleReviewers: Suits back and stomach sleepers up to 300 lb See the list

Returns: 120 nights from delivery (per the archived page) 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

Medium feel, extra support

Good

An 11.5″ medium hybrid with a lumbar support layer, also in Short Queen and RV King.
Trial: 120 nights from delivery (per the archived page)
Most long-term owners rated pressure relief 3-5 out of 5, and several rated sleep quality 4-5 out of 5.
Height: 11.5″

Think about

The newest page copy available is from May 2026; check the live site.
Five of 10 owners rated back support 1-2 out of 5, two of them 4-year owners who also rated sleep quality 1 out of 5.

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

From owners of a related model A small set of real reviews, each linked to its source. Not a star rating.

Small sample · 10 owner reports

GoodBed owners of the Helix Dusk, mostly 4-6 years in, are split, often rating pressure relief well but back support poorly.

What people liked

Most long-term owners rated pressure relief 3-5 out of 5, and several rated sleep quality 4-5 out of 5. Source ↗

What to weigh up

Five of 10 owners rated back support 1-2 out of 5, two of them 4-year owners who also rated sleep quality 1 out of 5. Source ↗

What independent reviewers found

Sleepopolis (Oct 2026): Very firm feel with zoned coils giving good spinal alignment for back sleepers, very low partner-motion transfer, and decent cooling; edges are sturdy lying down but less so when seated. Suits back and stomach sleepers and couples, not lightweight or strict side sleepers. Tests the version Helix renewed in early 2025; page also shows a 2024 date; likely queen; affiliate links disclosed on page. Read it ↗
Mattress Clarity (Oct 2026): Slightly firmer than average with excellent coil support and secure edges, but its bounce let more motion through. Breathable and cool; best for lighter and average back sleepers, while most side sleepers may find it too firm. Model year not stated; page lists conflicting firmness and trial/warranty terms; size not stated; affiliate links disclosed on page. Read it ↗
NapLab (Oct 2026): Rated 7/10 with the optional Ergo Align layer (about 6-6.5 without). Suits back and stomach sleepers up to 300 lb; not side sleepers under 250 lb. Strong edges (9.5) and cooling (9.0); more motion transfer than average. Tested 2025 version with Ergo Align and standard cover. NapLab discloses it may earn a commission. Read it ↗
Sleep Foundation (Apr 2026): Rated medium firm (6/10). Best for back and stomach sleepers around 130-230 lb. Among the best core Helix models for motion isolation; temperature control about average. Part of a review covering all core Helix models. Sleep Foundation discloses affiliate commissions. Read it ↗

Their testing, in our words. We haven’t tested these mattresses ourselves, and we don’t repeat their scores.

Sources & sample limits

10 GoodBed owner ratings on page 1 of 2 (May 2022-Jun 2026) Sample: 10 owner reports.

GoodBed's page for this name mixes owners of the pre-2024 Helix version (many report owning it 3-7 years) with owners of the current 11.5″ Core collection bed, so it is treated as related. Nearly every rater has owned it 4-6 years, so these describe the earlier Dusk. GoodBed reviews here are ratings only (no written text), so items paraphrase the star ratings.

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

Every size it comes in

RV king72 × 80 in11.5″Short queen · 74-inch60 × 74 in11.5″Twin38 × 75 in11.5″Twin XL38 × 80 in11.5″Full · 54-inch54 × 75 in11.5″Queen60 × 80 in11.5″King76 × 80 in11.5″California king72 × 84 in11.5″

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

Video reviews

Dusk · Review

Helix Dusk Mattress Review - The Most Supportive Helix Mattress!

Sleepopolis · YouTube ↗

Dusk · Review

Helix Dusk Review - Testing Mattress Cooling & Performance

NapLab · YouTube ↗

How it compares

Beside the most similar mattresses from other brands.

	DuskHelix	Elite HybridBear	Elite Ultra HybridBear	Original HybridBear
Type	Hybrid	Hybrid	Hybrid	Hybrid
Queen price	—	$1,599	$2,129	$829
Height	11.5″	14″	13.5″	11″
Trial	120 nights	365 nights	365 nights	365 nights
Odd sizes	2	None	None	None
Expert reviews	4	3	2	1

What’s inside

1Breathe Knit cover (GlacioTex cooling pillow-top optional)
2SupremeSupport 2.5 memory foam
3Gel memory foam comfort layer
4Helix Premium Responsive Foam firmness layer
5Responsive foam support layer
6Optional ErgoAlign contour segment
7Up to 1,000 individually wrapped coils with reinforced edges
8DuraDense foam base

Feel: Medium
Height: 11.5″
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.

RV king · 72 × 80

Short queen · 74-inch · 60 × 74

Returns and ordering

Trial and returns

120 nights from delivery (per the archived page)

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?

Helix Core collection, 11.5″ hybrid: proprietary memory foam and gel memory foam over responsive foams tuned for a medium feel with extra support, including a lumbar support layer, on up to 1,000 wrapped coils with reinforced edges and a DuraDense base. Options on the page: Breathe Knit cover or a GlacioTex cooling pillow-top upgrade, and an optional ErgoAlign extra-firm foam segment under the hips.

How firm is it?

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

Which sizes and heights can I get?

8 sizes, 11.5″. See every size. Confirm your exact size and height with the seller.

Are the reviews about this exact mattress?

From owners of a related model. GoodBed's page for this name mixes owners of the pre-2024 Helix version (many report owning it 3-7 years) with owners of the current 11.5″ Core collection bed, so it is treated as related. Nearly every rater has owned it 4-6 years, so these describe the earlier Dusk. GoodBed reviews here are ratings only (no written text), so items paraphrase the star ratings.

Where did this information come from?