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Helix Dawn Mattress Review

Materials: Coils and foam

Firmness: 8/10

Warranty: 10 years

Trial Period: 100 nights

Price Range: $600–$1,359

The Mattress Nerd’s Take: The Helix Dawn is a supportive, firm, hybrid mattress with noticeable bounce and minimal pressure-point relief. It’s best for stomach sleepers who are average-weight or heavyweight, and back sleepers who enjoy a dense, firm feel may enjoy it as well. Its pocketed coil core provides ample airflow for people who sleep hot, and its bouncy, responsive feel may appeal to combination sleepers who switch primarily between their backs and stomachs. Need more cushioning? Then check out the Helix Dawn Luxe in our comparison of the Helix Luxe mattresses. These beds are 2″ taller than the standard models and feature special upgrades such as zoned lumbar support and a plush quilted pillow top.

Who is the Helix Dawn Mattress Best For?

Lightweight (< 130 lbs):  2 4 1
Average weight (130 – 230 lbs): 4 5 1
Heavyweight (> 230 lbs):  4 4 2

1 = Very poor, 2 = Not good, 3 = Fair, 4 = Good, 5 = Excellent

Back Sleepers

Most back sleepers who are average-weight or plus-size will enjoy the supportive feel of the Helix Dawn. You shouldn’t experience any sagging at the hips or shoulders in this position. However, the mattress doesn’t provide much pressure relief or contouring, so if you experience low back pain or prefer more pressure relief around the lumbar spine, it may feel too firm for you. Lightweight back sleepers are also likely to find it too firm. For mattresses that protect the spine, see our picks for the best mattress for back sleepers.

Stomach Sleepers

Strict stomach sleepers require a firm mattress that will prevent any sinking at the hips and pelvis, which could induce low back pain. On the Dawn, you won’t experience any sinking hips, whether you’re lightweight, average-weight or plus-size. If you sleep only on your stomach and prefer a very supportive, firm feel, you’ll probably like the Helix Dawn. See the best mattresses for stomach sleepers for similar options.

Side Sleepers

We don’t recommend this mattress for lightweight, average-weight or heavyweight side sleepers. Its firmness level and dense top foam will increase pressure on the joints, especially at the hips and shoulders. The materials in this mattress make it very firm, and most side sleepers will find it uncomfortable on sensitive pressure points along the body. For better pressure-relieving mattresses, see our picks for the best mattress for side sleepers.

Combination Sleepers

The bounce of the Helix Dawn will appeal to some combination sleepers, but not all. It’s best for average-weight and plus-size combination sleepers who switch primarily between their stomachs and their backs, as side sleeping on this mattress is likely to prove rather uncomfortable. Even some average-weight combination sleepers who spend most of the night on their backs may find it too firm. We recommend taking the Helix Sleep quiz if you’re a combination sleeper and are unsure about whether the Dawn will work for you or check out our list on the best mattress for combination sleepers.

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Helix Mattress Video Review

How Does the Helix Dawn Mattress Feel? 

Responsiveness, Bounce and Ease of Movement 

The springy and responsive nature of the Helix Dawn should make it easy to move around and change positions. The mattress contains no memory foam, so you’ll never experience a “stuck” sensation when you try to move. The hundreds of individually wrapped coils in the core and the dense, latex-like comfort layer make it quite bouncy. If you are interested in investing more in a latex mattress, see our best latex mattress list.

How Firm Is This Mattress?

The Helix Dawn is a firm mattress, or roughly 8/10 on the 1–10 firmness scale, with 10 being the firmest. When you lie down, you’ll experience a firm, supportive feel, but lightweight sleepers and even some average-weight sleepers may find it too firm. Its firmness level and overall feel is best for strict stomach sleepers and strict back sleepers who are average-weight or heavyweight and prefer a firm, supportive mattress. 

Does It Sleep Hot? 

Temperature regulation is a key strength of all Helix Sleep mattresses, and the Helix Dawn is no exception. The coils provide strong air circulation to keep the mattress cool. In addition, its firmness level, breathable cover, and comfort and transitional layers together create a cooling mattress for hot sleepers.

Is the Helix Dawn Mattress Good For Couples? 

Motion isolation is an important quality to consider if you’re planning to sleep with a partner. The Dawn does isolate motion fairly well for a hybrid mattress, but it doesn’t absorb as much movement as other Helix Sleep models that contain memory foam. The latex-like top foam in the Dawn has more bounce to it, so you can feel some movement across the mattress. For mattresses that absorb motion better, see the best mattresses for couples.

How’s the Edge Support? 

The Dawn’s strong coil layer, high-density foam base and latex-like comfort foam help reinforce the bed well and reduce any perimeter sinkage. When you sit down or sleep near the edges, you should feel very secure.

Check out our Helix Mattress Comparison to figure out which Helix mattress is best for you.

Construction: What’s Under the Surface?

The Helix Dawn is a hybrid mattress, which means that it contains foam layers over a support core of pocketed coils. Its comfort and transition foams are denser than average, which help create the feeling that you’re sleeping “on” the mattress rather than “in” it. The firm layers help support the hips and pelvis while preventing sinking into the mattress. In general, this is an ideal setup for strict stomach sleepers, but some back sleepers may enjoy its feel as well.

Layer #1: Soft Touch Cover: The cover is a dual-layer material made from polyester. It feels soft, stretchy and breathable, but it’s non-removable and our team didn’t feel that it was “cool” to the touch. You can spot-clean the cover if stains occur. 

Layer #2: Helix Dynamic Foam: The comfort layer contains 2” of Helix Dynamic Foam, which is a latex alternative that balances bounce and cushioning. You’ll still feel a gentle hug, but it doesn’t envelop the body or allow you to sink in deeply like with memory foam.

Layer #3: High-Grade Polyfoam: The transition layer contains high-grade polyfoam, which provides extra support for the body. It also contributes to the bed’s firmer, more supportive feel.

Layer #4: Pocketed Coils: The support layer is what Helix Sleep calls a “Body Shape Layer,” which consists of individually pocketed coils. Because they’re pocketed, they limit more motion transfer than a traditional innerspring mattress while providing just as much durability, breathability, support and bounce.

Layer #5: DuraDense Foam: The base layer of the mattress is 1” of high-density polyfoam, which provides stability and support for the entire bed. Most mattresses have a bottom layer of foam, but you shouldn’t be able to feel any real difference from this layer when you rest atop the bed. 

How Much Does the Helix Mattress Cost?

Mattress Size Price Dimensions Height Weight
Twin $600 38” x 75” 12” 40-50 lbs.
Twin XL $700 38” x 80” 12” 40-50 lbs.
Full $850 54” x 75” 12” 70-80 lbs.
Queen $999 60” x 80” 12” 80-90 lbs.
King $1,349 76” x 80” 12” 90-100 lbs.
California King $1,349 72” x 84” 12” 90-100 lbs.

Check out our Helix Mattress Coupons page for the best deal on a new mattress. If you are on a tight budget, see the Best Mattress Under $500.

How Do the Policies Measure Up? 

Shipping & Unboxing

All Helix mattresses ship free in the United States. The Dawn should arrive as a bed-ina-box on your doorstep seven to 14 business days after you place your order online. Once it arrives, you’ll need to bring it into your bedroom, unbox it, remove the plastic covering and unroll it. If you experience any off-gassing odor, it should dissipate within 24–48 hours. The bed will need one or two days to return to its normal shape. Many of these company procedures are similar throughout the best online mattress brands.


The Dawn comes with Helix Sleep’s 10-year warranty, which protects against manufacturing defects. This limited warranty protects against visible indentations greater than 1”,  defects in the mattress cover, and physical flaws that cause the foam or spring materials in the mattress to split or crack.

If you notice a defect, you must return the mattress to Helix at your cost and provide original proof of purchase. If Helix Sleep confirms the defect, the company will provide a reimbursement for shipping costs up to $100, repair or replace your mattress, and ship it back to you at no added cost.

Trial Period & Returns

The Helix Dawn comes with a 100-night trial period. During the sleep trial, you can return the Dawn for a full refund if you’re not satisfied with it for any reason. You’ll need to keep the mattress for at least 30 days before initiating a return. This break-in period allows your body to fully adjust to the Dawn before deciding if it’s right for you.



Compare Mattresses

Comparing the Helix Mattresses

In addition to its standard line, Helix Sleep offers six “Luxe” mattresses that are slightly more elevated versions of their standard counterparts. The Helix Dawn Luxe should feel similar to the standard Helix Dawn, only not as firm thanks to a premium Tencel pillow top. The Luxe version also incorporates zoned coils in the support layer of the mattress and a transition layer of polyfoam for 2″ of extra thickness. 

Helix Dawn vs. Helix Plus

The Helix Plus mattress is designed for people who weigh 250 pounds or more. It has roughly the same firmness level as the Helix Dawn, but it contains some unique materials in its construction that are meant to meet the needs of plus-size sleepers. The cover is Tencel, which is a little more breathable than the Dawn’s poly-blend cover.

The Plus also contains memory foam in the top layer, giving it a bit more contouring and pressure relief for sleepers in any position. Like the Helix Dawn, the Plus has a supportive, bouncy and responsive feel. However, the top portion of memory foam is going to provide a little more hug. This enables the bed to provide pressure relief and support for all sleep positions, while the Helix Dawn is targeted primarily at stomach and back sleepers.

Helix Plus

The Helix Plus is designed with plus-size or taller individuals in mind. The mattress features extra-dense memory foam that won't lose its shape over time, even with added weight.

See our Helix Plus Mattress Review to learn more.

Helix Dawn vs. Helix Twilight

The Twilight is the Dawn’s “sister” mattress in the Helix standard line’s “Firm Feel” category. Its top layer of foam has more give than the Dawn’s, making it a good option for side sleepers who need or enjoy a firmer mattress. It contains memory foam in the comfort layer, so side sleepers should get a decent hug around the hips and shoulders.

Although Helix advertises this as a firm mattress for side sleepers, it can also work for stomach sleepers and back sleepers who like a firm feel with a little hug from memory foam. If you’re looking for a strictly firm, supportive feel, we recommend the Dawn. If you want a firm feel with a gentle hug, try the Twilight.

Helix Twilight

The Helix Twilight mattress is specifically engineered for sleepers who need a firmer sleep surface. A hybrid mattress featuring coils for support and memory foam for cradling, the Twilight combines lumbar support with cushioning that's good for back, stomach and heavyweight sleepers.

Helix Dawn vs. Helix Dusk

The Helix Dusk has a medium-firm feel and, like the Dawn, is made with layers of foam and pocketed coils. In comparison to the Dawn’s 8/10 firmness level, the Dusk is softer, coming in at a 6/10. In general, the Dusk’s firmness range is good for strict back sleepers and side sleepers who like a firmer feel. However, most stomach sleepers will experience some hip sinkage on the Dusk.

Because the Dusk has a firmness level that works for a wider range of sleeper types, we recommend it for anyone who switches between all three sleeping positions and for people who are outfitting a guest bedroom. Both models are good for back sleepers, but opt for the Dusk if you like more contouring and go for the Dawn if you like a more supportive feel. Strict stomach sleepers will feel better over time on the Dawn, which prevents almost all sinkage at the hips and low back.


Helix Dusk

The Helix Dusk is a hybrid mattress made for back and stomach sleepers who want a little extra cushioning. The Dusk comes with a soft top layer for cradling, while the coils and medium-firmness provide the support needed for spinal alignment.

Check out our full Helix Sleep Mattress Review to learn more.

Helix vs. Other Brands

Helix Dawn vs. Purple Hybrid

The Purple Hybrid is a hybrid mattress with pocketed coils and a comfort layer of Purple’s proprietary hyper-elastic polymer. The comfort layer “grid” has a stretchy, gel-like feel that sleepers tend to either love or hate. The Purple Hybrid has 2” of polymer at the top, giving it a firm feel (7/10) that, like the Helix Dawn, makes it a good choice for back and stomach sleepers.

The Purple Hybrid also sleeps cool, thanks to its pocketed coils and breathable cover. So, which to choose? If you tend to overheat at night, the Purple has slightly better cooling features than the Helix Dawn. Both work well for back and stomach sleepers, so the choice may ultimately come down to feel. If you’re open to try a unique, gel-like, floating feel, go with the Purple. If you prefer a traditional firm hybrid mattress, go with the Helix Dawn.

Purple Hybrid

The Purple Hybrid features the Original Purple mattress’s comfort grid but adds responsive support coils at the core for improved airflow, responsiveness and durability.

Read our full Purple Hybrid Mattress Review to learn more.

Helix Dawn vs. Casper Hybrid

The hybrid version of the original Casper mattress combines gentle comfort layers with pocketed coils. It has a medium-firm feel that balances cushioning and support. Softer at the shoulders for pressure relief and firmer at the hips for lift, the Casper is known for its zoned transition layer. This could make it a better choice for side sleepers and combination sleepers who switch between their sides and another position. In contrast, the Helix Dawn is firm throughout and best for back and stomach sleepers. In addition to its pocketed coil core, the Casper features aeration in the comfort foam, helping create even more airflow.

The Casper hybrid’s balanced feel may also give it the edge over the Helix Dawn for strict back sleepers who need a top layer that fills in the space at their lumbar region. However, the Helix Dawn is better for strict stomach sleepers, especially those who are plus-size or carry weight in their midsection.

Casper Hybrid

Striking the perfect balance between the contour of memory foam and the bounce of pocket-coils, the Casper Hybrid offers the best of both worlds when it comes to superior comfort and support.

Read our full Casper Hybrid Mattress Review to learn more.

Helix Dawn vs. Big Fig

Like the Helix Dawn, the Big Fig is a hybrid mattress with foam and coils, but it’s designed specifically for heavier individuals. The Big Fig uses dense foams that are highly durable for this body type and can support individuals who are up to 500 lbs. On either mattress, you’ll experience the sensation of sleeping “on” the bed rather than in it, and the pocketed coil cores and breathable top layers provide plenty of airflow for hot sleepers.

The Big Fig is a better choice for plus-size couples, however, as it shows impressive motion isolation performance for such a firm hybrid. Its price point is roughly double that of the Helix Dawn, however, so if you’re hoping to find a firm hybrid on a budget, we recommend the Dawn. The Big Fig is a better option for heavyweight individuals and couples who want to invest in a breathable mattress with good motion isolation and above-average durability.

Big Fig

Specifically designed for plus size sleepers, the Big Fig delivers on every quality a heavier adult could want (and need) in a mattress.

See our full Big Fig Mattress Review to learn more.

Haven’t made a decision yet? Check out these comparisons:

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Helix Dawn Mattress FAQs

How long will the Helix Dawn mattress last?

The hybrid construction and firm feel of this mattress should enable it to last around 7 to 10 years.

Can you flip the Helix Dawn?

No, the Helix Dawn is not a flippable mattress.

How much does my Helix mattress weigh?

Based on the construction, the mattress will weigh within the following ranges: King/Cal King (100–110 lbs.), Queen (90–100 lbs.), Full (80–90 lbs.), and Twin and Twin XL (50–60 lbs.). LUXE models will range about 20–30 lbs. heavier in each size. Thus, we recommend you enlist a friend in the unboxing process.

What’s the Bottom Line?

As one of the company’s firmest models, the Helix Dawn is a great new mattress for strict back and stomach sleepers. It provides a firm, supportive feel with bounce and mobility that make it easy to change positions for combination sleepers. The Dawn also features excellent edge support, which can appeal to heavier sleepers and couples who sleep on a smaller mattress. We find that the Dawn is too firm for most side sleepers, so if you spend a large portion of the night on your side, consider a soft or medium mattress model from Helix Sleep, such as the Helix Moonlight, the Helix Sunset or the Helix Midnight.

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