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Birch Mattress Review

The Birch Natural mattress from Helix Sleep is an all-natural bed that uses organic cotton and wool fibers to create a structure that’s as eco-friendly as it is comfortable. Though green sleepers may already be sold, I’ve dug into this bed’s construction, feel, and more to give you a great idea of what it might be like to sleep on the Birch!

Read on below to learn everything you need to know about the Birch before you decide whether or not it’s the right new mattress for your needs. Short on time? Skip down to my review summary.

$400 off + Free Pillows
Birch Mattress
Birch Mattress
Birch Mattress

The Birch mattress uses natural materials like organic cotton and talalay latex to provide great comfort from an organic product, in fact all Birch products are Greenguard Gold certified!

Is the Birch Natural Mattress a Good Mattress for You?

Helix is on a mission to build the world’s most comfortable and environmentally conscious sleep products with its Birch offshoot. Though it’s hardly the only brand to launch with this aim, I am impressed by the company’s dedication to its materials, all of which are sourced from sustainable supply chains.

But, high-quality natural materials don’t automatically make a great mattress! So to help you on your buying journey, I want to kick things off with a few recommendations on who should (and shouldn’t) consider the Birch.

The Birch mattress in the Sleepopolis studio.
The Birch mattress in the Sleepopolis studio.

Who I recommend the Birch Natural mattress for

  • The Birch’s organic materials all sleep cool, which means both hot sleepers and organic shoppers could like this bed!
  • Feel-wise, I think the firmness of this mattress is going to work best for back or stomach sleepers.
  • The Birch offers great bounce, which means combination sleepers should feel comfortable on this mattress.

Who I don’t recommend the Birch Natural mattress for

  • If you’re easily disturbed by a restless bedmate, the Birch probably isn’t a good fit for you. Its bouncy feel means that it’s easy to feel motion from the other side of the bed.
  • Side sleepers might find this bed too firm for their needs. I’d recommend one of our best mattresses for side sleepers instead.
  • If you’re looking for a body-contouring feel, one of our best memory foam mattresses could be a better fit for you. The Birch offers more bounce than cradling.

How Firm is the Birch Natural Mattress?

Next up, let’s talk a little about how this mattress feels! As far as feel factors go, firmness is one of the most subjective in the bunch, and can change a lot depending on one’s body shape, size, and weight. Therefore, I’m not just going to share just my firmness opinions with you; instead, I’m going to compile thoughts from myself and a few of my coworkers. The score you see below is the average of all our personal firmness ratings.

The Birch on the mattress firmness scale.
The Birch on the mattress firmness scale.

There was a surprising amount of variance in our responses, with ratings ranging from a medium-soft to extra firm. Personally, I gave the Birch a 7 out of 10 on the mattress firmness scale, and found it to be a firm mattress. For reference, I’m about 130 lbs.

In general, I’d recommend this bed to anyone looking for a firm mattress. If you’re especially light and stay more on top of the Birch’s wool layers, it could feel more medium-firm to you. The Birch is also very bouncy, which means combination sleepers who need to be able to change positions easily should like the feel of this bed.

Regardless of how firm you find the Birch, you’ll definitely feel lifted “on top of” this bed, rather than hugged or cradled by it. If you like a supportive feel, you should like the Birch. If you prefer a little more sinkage, you can consider adding the Birch Living Pillow Topper to your bed to soften it up a little!

$400 off + Free Pillows
Birch Mattress
Birch Mattress
Birch Mattress

The Birch mattress uses natural materials like organic cotton and talalay latex to provide great comfort from an organic product, in fact all Birch products are Greenguard Gold certified!

Birch Natural Mattress Performance

I always like to run a few performance tests on mattresses I review to help you get a better idea of how a particular mattress will feel to you. Below, I’ll go over how the Birch performs in different sleeping positions, how it might feel to people with pain, and how well it might work for couples.

Testing the Birch Natural Mattress in Different Sleeping Positions

As I mentioned above, a mattress will feel different to you depending on your body weight and preferred sleeping position. Below, I’ll break down how the Birch could feel to different sleepers.

Is the Birch a Good Mattress for Light Sleepers (Under 130 lb)?

  • Light Back Sleepers – The Birch will likely feel firm and supportive to these sleepers. Back sleepers who enjoy a firm feel should be comfortable on this bed.
  • Light Side Sleepers – The Birch will most likely be too firm for these sleepers, who need a softer mattress to cushion sensitive pressure points at the shoulders and hips.
  • Light Stomach Sleepers – These sleepers should really like the Birch! It should do a great job keeping their shoulders and hips neutrally aligned.

Is the Birch a Good Mattress for Average Weight Sleepers (130 – 250 lb)?

  • Average Weight Back Sleepers – These sleepers should also like the Birch. It will do a nice job helping them maintain a healthy spinal alignment throughout the night, and could also be a good choice for relieving back pain.
  • Average Weight Side Sleepers – The Birch is much too firm for these sleepers, who will likely rest too close to its steel coil layer to feel comfortable.
  • Average Weight Stomach Sleepers – The Birch should be firm enough to help these sleepers keep their hips lifted up in line with their shoulders. This is great for alleviating back pain when you sleep on your stomach!

Is the Birch a Good Mattress for Heavy Sleepers (over 250 lb)?

  • Heavy Back Sleepers – The Birch is a great choice for these sleepers. They might find the Birch has a more medium-firm feel, and should get a nice balance of pressure-relief and support from this bed.
  • Heavy Side Sleepers – These sleepers will most likely find the Birch uncomfortably firm. I’d recommend they check out our best mattresses for heavy people to find a softer option.
  • Heavy Stomach Sleepers – This mattress doesn’t offer quite enough durability for these folks. While it may feel comfortable at first, it may let heavy sleepers’ hips dip below their shoulders during the night, which can lead to discomfort and soreness at the lower back.

Birch Natural Mattress Pain Relief Performance

An important component of a bed’s feel is how well it relieves pain in certain areas. A great way to measure a bed’s capacity for pain relief is to look at its pressure relief. Pressure relief refers to how well a mattress is able to alleviate tension at sensitive spots like the shoulders, hips, and lower back.

To measure pressure relief, I like to use a good ol’ fashioned pressure map, a device that tracks my body’s interactions with a mattress in real time. Basically, I roll this baby out, hop aboard, and let the technology do the rest. It creates a map that shows areas of low pressure in blue and green and areas of high pressure in yellow and red.

The Birch's pressure map results.
The Birch’s pressure map results.

Back Pain – Based on these results, I’d say the Birch is a great pick for sleepers with back pain (especially if they sleep on their backs or stomachs). Personally, I felt the Birch’s springs and bouncy latex kept my spine in a pleasantly lifted position.

Shoulder Pain – The map above indicates that the Birch could be a good pick for sleepers with shoulder pain. If you sleep on your back or stomach, the Birch could help relieve some pain in the shoulder area. However, side sleepers with shoulder pain will find this bed much too firm. I’d recommend one of our best mattresses for shoulder pain instead.

Hip Pain – Similarly, side sleepers with hip pain will need a softer bed. The longer you lie on the mattress, the harder your shoulders and hips dig into the structure, which can lead to pain and tension in these spots. One of our best pillow top mattresses might be a better fit for folks with hip pain.

$400 off + Free Pillows
Birch Mattress
Birch Mattress
Birch Mattress

The Birch mattress uses natural materials like organic cotton and talalay latex to provide great comfort from an organic product, in fact all Birch products are Greenguard Gold certified!

Birch Natural Mattress Performance for Couples

The best mattress for couples usually offers good motion isolation, enough bounce for sex, good temperature regulation, and good edge support. I examined how the Birch performed in all these areas to help you decide if it’s a good mattress to share with your partner.

Motion Transfer

Motion transfer is the amount of movement detectable from one side of the bed to the other. This is going to be an important section for all sleepers, but especially so for those who share their bed with a partner as it’ll let you know whether or not tossing and turning on the opposite side of the bed is going to disturb you.

To illustrate motion transfer, I dropped a 10 lb steel ball from heights of 4 inches, 8 inches and 12 inches and measured the disturbance it caused: the bigger the lines, the bigger the disturbance.

The Birch's motion transfer results.
The Birch’s motion transfer results.

These aren’t the best motion transfer results, which isn’t that surprising considering how bouncy this latex hybrid mattress is. While this buoyant lift makes for excellent mobility, it does mean that nighttime movements are going to ricochet throughout the structure. Easily disturbed couples may want to consider a bed with a thicker top layer of foam to help absorb some motion.


The best mattress for sex is bouncy and easy to move around on. The Birch is definitely great for sex, as its super easy to move around on and you feel firmly lifted up on top of it.


Couples tend to overheat more quickly than solo sleepers, so it’s important for them to have a great cooling mattress. The Birch sleeps super cool, which is great news for hot sleepers and couples! Its natural wool and latex layers offer tons of breathability, and prevent this bed from trapping body heat.

Edge Support

Edge support is a measure of how supportive the sides of your mattress are. Strong edge support can make a bed feel larger, which is a perk for couples who like to spread out. The Birch had decent edge support. I’ve definitely tested beds with stronger edges, but I also felt pretty secure lying on the side of this mattress.

$400 off + Free Pillows
Birch Mattress
Birch Mattress
Birch Mattress

The Birch mattress uses natural materials like organic cotton and talalay latex to provide great comfort from an organic product, in fact all Birch products are Greenguard Gold certified!

What is the Birch Natural Mattress Made Of?

The Birch is an 11-inch tall natural latex hybrid mattress made with organic materials. This bed is also Greenguard Gold certified, which means it won’t release high levels of chemical emissions or volatile organic compounds into your home. This is great for peace of mind at night, especially when buying a bed-in-a-box mattress.

But enough chat! Let’s take a closer look at each of this bed’s allergen and plastic-free layers.

Birch cover close up
A closer look at the Birch’s cover.

Cover – The Birch is made with an organic cotton cover. It feels soft and breathable, plus has a little stretch to it. It’s also quilted with wool fibers to make the material fire-retardant.

Comfort Layer – Next up is a comfort layer made of organic Birch wool. This layer offers some nice pressure relief, plus does a great job wicking moisture and absorbing body heat. This layer helps regulate temperature and keep you cool at night.

Transition Layer – Underneath the wool comfort layer, you’ll find a section of all-natural Talalay latex. This material has a quick response to pressure, so should meet your body with some fantastic bounce to position you more “on top” of the bed than “in” it. Latex also has natural cooling properties, and will encourage plenty of airflow in this bed.

Support Layer – The bulk of the mattress is made of a pocketed coil system. These tall coils offer plenty of firm support, plus make this bed even more breathable!

Base Layer – A thin layer of organic wool batting finishes off the construction. It mostly gives the coils something to bounce off of.

Internal layers of the Birch mattress
A look inside the Birch.

Birch Natural Mattress Unboxing and Off-Gassing

The Birch is a bed-in-a-box mattress so it will arrive compressed. Latex beds are fairly heavy, so I’d recommend having a friend handy to help you unbox it. I also want to note that this bed does have a strong off-gassing smell (likely due to its wool layers). If needing to air out your mattress for a few days is an issue for you, you might prefer a different bed. Keep in mind that off-gassing isn’t dangerous and the Birch won’t release any harmful chemicals into your bedroom thanks to its organic build.

$400 off + Free Pillows
Birch Mattress
Birch Mattress
Birch Mattress

The Birch mattress uses natural materials like organic cotton and talalay latex to provide great comfort from an organic product, in fact all Birch products are Greenguard Gold certified!

My Final Thoughts about the Birch Natural Mattress

We’ve assessed the Birch’s construction, figured out how it feels, and taken a look at a few performance factors, but the question remains: Is the Birch mattress right for you? Unfortunately, that’s not for me to say (sorry!), but I can leave you with some final thoughts to help you make your decision.

My favorite things about the Birch mattress

One of my favorite things about the Birch is how cooling it is! I think any hot sleeper will be satisfied by this breathable bed. It’s definitely one of the most cooling mattresses available thanks to its wool and latex layers. These cooling materials also make it one of my favorite organic mattresses!

I also think anyone looking for a classic latex feel will really appreciate this bed. Its organic layers have a taut, springy feel and really offer great lift and support. If you’re a back and stomach combination sleeper I’d highly recommend the Birch.

My Birch mattress complaints

As a side sleeper, I prefer a mattress that offers more sinkage and body-contouring. The Birch definitely doesn’t offer much sinkage, so most side sleepers might feel a little sore around the shoulder and hip area after sleeping on the Birch.

As I mentioned above, this mattress also releases a strong off-gassing scent that does linger for over 24 hours. To me, the Birch smelled more like wet wool than chemicals (most boxed mattresses release a chemical odor during off-gassing). As long as you don’t mind keeping your new bed in a well-ventilated room for a day or two after unboxing it, this shouldn’t be too much of an issue.

How Much Does the Birch Cost?

The Birch is very well-priced for an organic latex mattress! Take a look at the chart below for all the pricing and sizing details. That said, most latex beds are on the pricier side, so make sure you use our coupon below to save on your purchase.

Price listed will be before discount or offer for each size.

$400 off + Free Pillows
Birch Mattress
Birch Mattress
Birch Mattress

The Birch mattress uses natural materials like organic cotton and talalay latex to provide great comfort from an organic product, in fact all Birch products are Greenguard Gold certified!

SizeStandard DimensionsStandard Price
Twin39” x 75” x 11”$1,249
Twin XL38” x 80” x 11”$1,299
Full54” x 75” x 11”$1,499
Queen60” x 80” x 11"$1,699
King76” x 80” x 11”$1,999
California King72” x 84” x 11”$1,999

Birch Mattress Policies and FAQs

Does the Birch come with a mattress warranty?

Yes, this bed comes with a lengthy 25-year warranty.

Does the Birch mattress come with a trial period?

Yes, the Birch comes with a 100-night sleep trial period.

How does the Birch mattress ship?

The Birch will ship for free and arrive compressed in a box.

Where is the Birch mattress made?

Birch mattresses are made in the USA.

Birch Mattress vs

Alright, so we’ve got a pretty good idea about what the Birch is all about, but how does it stack up against other eco-friendly beds in the space? To find out, let’s compare it to the Avocado and Zenhaven mattresses.

Birch vs Avocado

Avocado Cover
The Avocado mattress.
  • Like the Birch, the Avocado is a hybrid bed-in-a-box mattress made with latex and steel coils.
  • The Avocado has a softer feel than the Birch mattress.
  • The Avocado and Birch are in a similar price range.
  • Learn more in my full Avocado mattress review.

Birch vs Zenhaven

Zenhaven 2019
The Zenhaven mattress.
  • The Zenhaven is an all-latex mattress made by Saatva and does not ship in a box.
  • The Zenhaven is flippable, with two different firmnesses folks can switch between by simply turning over the bed.
  • Since it’s built entirely of all-natural latex, the Zenhaven is both super bouncy and super cooling, which could be a nice combo for anyone who overheats.
  • Read my full Zenhaven mattress review to learn more.

Other Models from Helix

Birch is an offshoot of Helix Sleep, a mattress brand that offers tons of great mattress options in various firmness levels. Below, I’ll compare the Birch to two other Helix mattresses.

Birch vs Helix Midnight

helix midnight
The Helix Midnight.
  • The Helix Midnight uses memory foam in its top layers and offers more body-contouring than the Birch.
  • The Midnight feels much softer than the Birch, making it a better choice for side sleepers.
  • The Midnight is less expensive than the Birch mattress.
  • Read my full Helix Midnight mattress review for more.

Birch vs Helix Twilight Luxe

twilight luxe
The Helix Twilight Luxe.
  • The Twilight Luxe is a hybrid mattress that uses memory foam in its comfort layers.
  • The Twilight Luxe features zoned support, which means it’s softer at the shoulders and firmer at the lower back.
  • The Twilight Luxe feels softer than the Birch.
  • Learn more in my full Helix Twilight Luxe mattress review.

Still not sure if the Birch is the right mattress for you? Take a look at how I rated it below to make a final decision.

$400 off + Free Pillows
Birch Mattress
Birch Mattress
Birch Mattress

The Birch mattress uses natural materials like organic cotton and talalay latex to provide great comfort from an organic product, in fact all Birch products are Greenguard Gold certified!

Birch Living Bed
  • Materials
  • Comfort
  • Support
  • Value
  • Cooling
  • Edge Support
  • Trial
  • Warranty

Madison Schaper

Madison is the Staff Writer at Sleepopolis. She reviews new mattresses every week to help readers decide which mattress is best for their needs. When she's not testing out a bed or trying to fit in at least nine hours of sleep you can find her exploring a new park, reading short stories, or checking out a local brewery.