Helix Moonlight Mattress Review

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The Helix Moonlight is one of the softest models in the Helix brand’s lineup of hybrid mattresses. But unlike many soft mattresses, it has a surprisingly bouncy feel. The combination of soft and bouncy will work very well for some sleepers and won’t be a match for others.

Is the Helix Moonlight right for you? Read on for our in-depth Helix Moonlight mattress review to find out! We’ll detail this mattress’s firmness, feel, construction, and performance and share who’s most likely to love this bed (and who might not). We’ll also compare the Helix Moonlight against two of its biggest competitors.

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Helix Moonlight
Helix Moonlight
Helix Moonlight

The Helix Moonlight is a softer hybrid which should be a great fit for side sleepers. Click the button to save up to $200 and get 2 free pillows

Helix Moonlight Mattress Overview

Because the Helix Moonlight is on the softer side, it will be better suited to some types of sleepers than others. Here’s a quick overview of who’s most likely to enjoy sleeping on this mattress and who might want to continue their mattress search.

Who Might Like The Helix Moonlight?

Who Might Not Like The Helix Moonlight?

  • Stomach sleepers
  • Folks who enjoy a memory foam feel right on top of their mattress

To learn more about the other models, read our full Helix mattress review.

Helix Moonlight Mattress Firmness And Feel (Including Firmness Rating)

When you’re looking for a new mattress, firmness and feel should be top of mind. These factors will majorly affect whether a particular mattress suits your sleep position and other preferences. So let’s kick off the in-depth portion of this review with a look at the Helix Moonlight’s firmness and feel!

How Firm Is The Helix Moonlight?

We ranked the Helix Moonlight around a 6 out of 10 on the firmness scale. The industry standard for medium firmness is 6.5/10, so this suggests the Helix Moonlight is a bit softer-than-average. This makes sense when you remember that the Helix Moonlight is one of the softest models in the Helix lineup.

Firmness measurements are somewhat subjective, so it’s worth noting that your assessment might vary a bit depending on your body weight and preferences. But most people should agree that this mattress is on the softer side.

Sleeping On The Helix Moonlight

We felt okay but not great while back sleeping on the Helix Moonlight. Our hips were at risk of bowing into the mattress. If you spend all night in this position, you’ll almost definitely want to look for a firmer mattress that offers more spinal support. For example, take a look at the Helix Midnight or Helix Dusk.

Because this is a soft mattress, we found the Helix Moonlight to be a fantastic match for side sleeping. We didn’t experience any pressure around the shoulder or hip, which are common hot spots for side sleepers.

Helix Moonlight - Side Sleeping

The Helix Moonlight is simply not supportive enough for stomach sleeping. Our hips sank too far into the mattress and pulled the spine out of alignment. Strict stomach sleepers will want to seek out a dedicated mattress for stomach sleeping such as the Helix Dawn or Helix Twilight.

What Does The Helix Moonlight Feel Like?

Given that the Helix Moonlight is fairly soft, you might expect it to have a plush, slow-moving feel. But in reality, the Helix Moonlight has a surprisingly bouncy feel. It should be easy to move around on top of this mattress.

Average Weight Sleepers – 130lbs – 230lbs

The Helix Moonlight could be a decent match for average-weight back sleepers, particularly those who are on the lighter end of the weight spectrum. However, back sleepers who enjoy feeling very well supported will probably want to look for a firmer mattress. This bed is an excellent fit for side sleepers, who should enjoy plenty of pressure relief thanks to the mattress’s soft comfort layers. This mattress is almost certainly too soft for average-weight stomach sleepers.

Heavyweight Sleepers – Over 230lbs

Heavyweight back sleepers are unlikely to obtain adequate support on the Helix Moonlight, and they’ll probably prefer a dedicated mattress for heavy people. Side sleepers who weigh less than 300 pounds should enjoy plenty of pressure relief, while folks who weigh more than that could find that they press through the soft comfort layers and feel jammed up on the firmer support layer underneath. This mattress is not at all supportive enough for heavyweight stomach sleepers.

Lightweight Sleepers – Under 130lbs

Lightweight back sleepers could obtain adequate support on the Helix Moonlight. Meanwhile, lightweight side sleepers should find this mattress to be a pressure-relieving dream. The Helix Moonlight is not supportive enough even for lightweight stomach sleepers.

Helix Moonlight Mattress Construction

Now that you know what it’s like to sleep on top of the Helix Moonlight, let’s peel back this bed’s cover and take a look inside. We’ll detail each layer of this mattress’s construction and share how different materials influence performance and feel.


The Helix Moonlight comes with a Soft Touch Design cover that is soft to the touch and very breathable.

Comfort Layers

The primary comfort layer on the Helix Moonlight consists of the Helix brand’s proprietary Helix Dynamic Foam—a latex-foam alternative that is bouncy, responsive, and a bit pressure-relieving. Underneath the main comfort layer, there’s a transition layer made from the same material. Placing two layers of Helix Dynamic Foam on top of each other creates the Helix Moonlight’s bouncy feel.

Helix Moonlight Mattress Construction

Support Layer

Like all the models in Helix’s hybrid line, the Helix Moonlight features a support layer made from individually-wrapped coils. These coils rest on a high-density base foam that lends structure and support to the mattress overall.

Mattress Height

The Helix Moonlight measures in at 12” tall.

Helix Moonlight Mattress Size Options And Price

Curious about the current size and pricing options for the Helix Moonlight? Then take a peek at the chart below!

Size Dimensions Price
Twin 38″ x 75″ x 12″ $700
Twin XL 38″ x 80″ x 12″ $800
Full 54″ x 75″ x 12″ $950
Queen 60″ x 80″ x 12″ $1099
King 76″ x 80″ x 12″ $1449
California King 72″ x 84″ x 12″ $1449

Don’t forget to check out our Helix mattress coupons to get the best deal.

Save Up To $200
Helix Moonlight
Helix Moonlight
Helix Moonlight

The Helix Moonlight is a softer hybrid which should be a great fit for side sleepers. Click the button to save up to $200 and get 2 free pillows

Helix Moonlight Mattress Performance

At this point in the review, you know a lot about the Helix Moonlight’s firmness, feel, and construction. All of those are critical components of a mattress, but they’re also not the whole story. We put the Helix Moonlight through a barrage of tests to assess its performance with regards to temperature regulation, edge support, motion transfer, and more. Let’s see how it did!

Sleeping Hot Or Cold

The Helix Moonlight boasts several design features to help it sleep cool: namely, a breathable cover and coils, which allow for airflow throughout the entire mattress. This bed shouldn’t trap much heat. But if you’re still worried about overheating, you can upgrade to the Luxe model to get even more cooling features.

Motion Transfer

Given that the Helix Moonlight is a very bouncy mattress, it’s probably not surprising that it doesn’t minimize motion transfer particularly well. While it’s not terrible, the bounciness of the bed does carry some movement across the surface of the mattress. Keep this in mind if you’re looking for a mattress for couples.

Edge Support

The Helix Moonlight boasts strong edge support thanks in large part to its support layer of coils. We felt secure while lying down near the edge of this mattress.


This should be a longer-lasting mattress thanks to the inclusion of high-density foams and durable coils.


We did observe some initial off-gassing from the Helix Moonlight. This should dissipate within a few days.


At the time of this review, we observed just a tiny bit of noise from the Helix Moonlight’s coils. It’s possible this noise could get louder as time goes on.


When people seek out a mattress for sex, they’re usually concerned with being able to change positions easily. The Helix Moonlight is a great match in this regard because its bouncy and responsive nature makes it easy to move around on top of the bed. Partners shouldn’t feel stuck in this mattress.

Helix Company Policies

Thinking about purchasing the Helix Moonlight mattress? It’s important to understand the fine print before making any purchase decision. We will walk you through Helix’s policies.


Your Helix Moonlight mattress comes with a 10-year warranty. Learn more about the warranty on Helix’s website.

Sleep Trial

The Helix Moonlight mattress gives you a 100-night sleep trial to help determine if you love the mattress or not.

Return Policy

If you ultimately decide that the Helix Moonlight mattress isn’t right fit for you after at least 30 days of sleeping on the mattress, you have the option to return it within the 100-night sleep trial. Helix will arrange a mattress pickup and give you a full refund once the removal is complete.

How Does The Helix Moonlight Compare To Other Mattresses?

If you’re considering the Helix Moonlight, then you’ve probably come across other popular online mattresses. It’s a good idea to do some comparison shopping because this will help you feel confident in making the decision that’s best for you. To that end, we’ve pitted the Helix Moonlight head-to-head against two of its biggest competitors: the Nectar and the original Purple mattress.

Also, make sure to see our other Helix mattress comparisons.

Helix Vs Nectar

The Helix Moonlight and Nectar feature different constructions. The Helix Moonlight is a hybrid mattress that layers dynamic foam over coils, while the Nectar is an all-foam mattress that uses memory foam in its comfort layers.

Nectar Mattress - Construction And Foam Layers

Due to their different materials, the Helix Moonlight and Nectar also boast different feels. The Helix Moonlight is bouncy and responsive, while the Nectar has the slower-moving feel that’s commonly associated with memory foam.

These are both durable mattresses, but the Helix might win out here thanks to its inclusion of long-lasting coils.

These beds differ a bit when it comes to firmness. We ranked the Helix Moonlight as softer-than-average (6/10 on the firmness scale), while we ranked the Nectar around average firmness at 6.5/10.

The Helix Moonlight and the Nectar also differ a bit in terms of price. A Queen-size Helix Moonlight starts at $999, while a Nectar costs a bit more at $1,198 for the same size.

Who Should Get The Helix Moonlight?

  • Hot sleepers who need a mattress that won’t trap heat
  • Folks who are looking to save some money

Who Should Get The Nectar?

  • People who prefer a memory foam feel
  • Fans of all-foam mattresses

Learn more about the Nectar in our in-depth Nectar mattress review.

Helix Vs Purple

The Helix Moonlight and the original Purple mattress vary dramatically when it comes to their constructions. The Helix Moonlight is a hybrid mattress that layers dynamic foams over coils, while the Purple has a comfort layer made from the Purple brand’s proprietary hyper-elastic gel polymer grid.

Purple Mattress - Construction And Layers

Thanks to their different materials, these beds have very different feels. The Helix Moonlight features a bouncy, hybrid feel, while the Purple has a unique, gel-like feel that is simultaneously squishy and firm.

These are both long-lasting mattresses, but the Purple grid is an exceptionally durable material. That means the Purple is likely to last even longer than the Helix Moonlight.

The Purple is a bit firmer than the Helix Moonlight. We ranked the Helix Moonlight at 6/10, or softer than average, while the Purple is right around average firmness at 6.5/10.

These beds also differ a bit when it comes to price. The Helix Moonlight starts at $999 for a Queen, while the same size Purple costs a bit more and starts at $1,149.

Who Should Get The Helix Moonlight?

  • Side sleepers, who need plenty of pressure relief
  • Fans of a traditional mattress construction and feel

Who Should Get The Purple?

  • Hot sleepers who need a bed that sleeps temperature neutral
  • Folks who are looking for an exceptionally durable mattress

Get to know the Purple mattress more in our comprehensive Purple mattress review.

Our Helix Moonlight Mattress Ratings

Interested in seeing the final Helix Moonlight score? Well, we’ve got all the scores right here in addition to the final tall!

Helix Moonlight
3.8 Overall
The Helix Moonlight is one of the company's softer models and is a great match for side sleepers.
Edge Support
Motion Transfer
Trial Period

Helix Moonlight Mattress FAQs

Still have questions? We’ve got answers to some of the most commonly asked questions about the Helix Moonlight mattress!

How long will the Helix Moonlight mattress last?

The hybrid Helix Moonlight is a durable mattress that, given proper care, should last for approximately 7 to 10 years.

Do you need a box spring with the Helix Moonlight mattress?

No, you do not need to use a box spring with the Helix Moonlight. It’s fine to place this mattress directly on top of a bed frame or other base.

Can you flip a Helix Moonlight mattress?

No, you cannot flip the Helix Moonlight. Doing so would result in sleeping on top of the hard coils instead of the softer comfort layers.

Gravatar for Marten Carlson

Marten Carlson

Marten is Senior Editor at Mattress Clarity. He covers the mattress industry as well as sleep science news. He is specifically interested in the connection between sleep and overall health. Marten has written for media publications like Consequence of Sound and received a master’s degree in Film Studies from Emory University. He comes from Franklin, Indiana, and spends all the time he can writing, directing, and acting in films. He has directed genre short films and features. His newest film, Starlets, recently premiered at the River Town Film Festival in Clinton, NJ. He also stars in the upcoming thriller, Sour Bear. His next film, At The Hop, is a hot rod actioner with a horror twist.