Both are organic latex hybrids with no fiberglass, and Sleep Foundation and Mattress Clarity score them close overall. Birch costs less and scores higher at Sleep Foundation and NapLab; Avocado gives you more feels to pick from and a longer trial.
Pick the Avocado Green Mattress if you want five feels, a full year to decide, or a store to try it in first. A Queen in the Medium feel is $2,399, and a return costs $99.
What will each bed cost, including setup and a return?
Why this matters to you:Both charge a flat $99 if you send the mattress back. Birch calls it a removal fee; Avocado calls it a return fee. Neither refunds shipping or a paid setup.
Avocado's list price for its Medium feel and Birch's sale price for its only feel, checked Sep 27, 2026. Birch costs $1,000 less for a Queen.
Cost calculator
What will you pay to keep, return or exchange it?
Brand prices, Sep 27, 2026
Avocado Green
Pay up front
If you return it
If you swap feels
Birch Natural
Pay up front
If you return it
If you swap feels
Avocado: Medium Tight-Top, 11 in. Birch: its only feel, medium-firm, 10 in. Split King isn't sold by either brand in these builds.
Size
Avocado Green
Birch Natural
Twin
$1,599
$1,030
Twin XL
$1,699
$1,124
Full
$2,099
$1,265
Queen
$2,399
$1,399
King
$2,999
$1,686
Cal King
$2,999
$1,686
Split King
Not sold
Not sold
Birch's price is 25% off its $1,865.33 Queen list price with a promo code. Avocado also sells Firm and Plush feels on this product, plus separate Extra Firm and Ultra Plush mattresses, at different prices. Prices change often, so recheck both before you buy.
Firmness
Feels checked on each brand's site · Sep 27, 2026
What firmness options can you choose?
Why this matters to you: Brands name their feels their own way, so one brand's Medium can be another's Luxury Firm. Sleep Foundation rates the feels it has reviewed on one 10-point scale.
The firmness choices for the beds compared here, on Sleep Foundation's 10-point firmness scale, where 1 is softest and 10 is firmest. Feel names are each brand's own; the note below flags any that differ or weren't rated. We don't test beds ourselves.
Avocado GreenFeels sold: Firm, Medium, Plush, plus separate Extra Firm and Ultra Plush mattresses
567
1 Softest10 Firmest
Box-Top build 5
Pillow-Top build 6
Standard build 7
Birch NaturalFeels sold: Medium-firm only
6
1 Softest10 Firmest
Medium-firm 6
Sleep Foundation's firmness ratings. Avocado review updated Oct 13, 2025; Birch review updated May 28, 2026.
Sleep Foundation rated three Avocado builds under older names (Standard, Pillow-Top and Box-Top). Avocado now sells by feel name, and we couldn't match the two lists for certain. Birch's one feel lands at 6.
Who fits
Which feel did Sleep Foundation score highest for your sleep position and weight?
Why this matters to you: Sleep Foundation scores each feel separately for lighter, average and heavier sleepers in each position, so a feel that suits one sleeper can score lower for another. These are one outlet's scores, not a promise of how a bed will feel to you.
Below is the feel of each bed that Sleep Foundation's testers scored highest for each sleep position and body weight, out of 10. We don't test beds ourselves.
Fit finder
Find the top-scoring feel for your choices
Sleep Foundation scores
1. How you sleep
2. Your weight
Avocado Green
Birch Natural
Share the bed or switch positions? Check each combination. We don't average scores across sleepers.
Best-scoring feel of each bed, out of 10. Bold marks the higher score, or both when they tie. Sleep Foundation's Avocado review updated Oct 13, 2025; its Birch review updated May 28, 2026.
Your weight
Side
Back
Stomach
Under 130 lbs
Avocado Pillow-Top 8.5Birch7.5
Avocado Pillow-Top 9.5Birch9
Avocado Standard or Pillow-Top 9Birch9
130 to 230 lbs
Avocado Pillow-Top 9Birch8
Avocado Pillow-Top 9Birch8.5
Avocado Standard or Pillow-Top 8Birch8
Over 230 lbs
Avocado Pillow-Top 8.5Birch7.5
Avocado Pillow-Top 8Birch7.5
Avocado Standard or Pillow-Top 7Birch7
Avocado sells three builds that Sleep Foundation tested separately; Birch sells only one. That's why Avocado's best-scoring build usually beats Birch's single build here, even though Birch scores a little higher in Sleep Foundation's overall rating.
Tester results
What do review sites say about feel, cooling, partner movement and edge support?
Why this matters to you: Review sites score the same bed differently. Each uses its own scale and tests, so we show every score as it was published and never add them up into one winner.
We don't test mattresses. These are three outlets' published scores, each on its own scale, never averaged. The higher score in each pair is marked; a tie is not.
Scores as each outlet publishes them: Sleep Foundation · Mattress Clarity · NapLab. Mattress Clarity and NapLab each tested the brand's default build; Sleep Foundation tested three Avocado builds and Birch's one build.
What they measured
Sleep Foundationout of 10 · Avocado review updated Oct 13, 2025; Birch review updated May 28, 2026
Close to even. Only NapLab splits them, favoring Birch.
Smell on arrival
Not scored
Not scored
Avocado 9.7Birch 10
Not scored by Sleep Foundation or Mattress Clarity.
Both score well. NapLab is the only outlet that rates this, and scores Birch a touch higher.
The beds
How is each bed built, and who is it for?
Latex-over-coil hybrid
Avocado Green
Avocado Green
The Green Mattress is Avocado's organic latex hybrid, with wrapped coils under a latex comfort layer and organic wool for both comfort and fire protection. It comes in three feels sold on this product, plus two more sold as separate mattresses.
Fire barrier: organic wool, the mattress's flame barrier, per Avocado
Avocado Green Mattress, Medium Tight-Top, Queen, as Avocado lists it. The Medium build also adds 1 in of latex to the base layer. Layer order only, not to scale.
You get a full year to decide, and a return costs $99. Sleep Foundation tested three builds of this mattress. Its best-scoring build, the Pillow-Top, scored 8.5 to 9.5 across most positions and weights.
Who may like this bed?
You want a feel picked for you: Firm, Medium, Plush, or two more built firmer or plusher still.
You want a full year to decide.
You want a retail store nearby to try it first.
Who may prefer another bed?
You want the lowest price; Birch costs less.
You don't want to pick from five feels.
You weigh a Trustpilot score heavily; Birch's is much closer to its own site rating.
Birch Natural puts an organic latex layer over individually wrapped steel coils. A natural wool comfort layer sits on top, and a separate fire barrier sits below the coils. It comes in one feel, medium-firm.
Fire barrier: a fiberglass-free fire-retardant fiber blend base layer, separate from the wool comfort layer, per Birch
Birch Natural, Queen, as Birch lists it. Cover has a matelasse weave; the coil unit is 8 in. Layer order only, not to scale.
It ships compressed in a box, free, in 5 to 8 business days. You get 120 nights, and a return costs a $99 removal fee. Testers gave it slightly higher marks than the Avocado at Sleep Foundation and NapLab.
Who may like this bed?
You want a lower price. A Queen costs about $1,000 less.
You want one feel, already chosen for you.
You want a mattress the American Chiropractic Association endorses.
Who may prefer another bed?
You want more than one firmness option; Avocado sells five.
What do the brands say about fire barriers, fiberglass and certifications?
Why this matters to you: Every mattress sold in the U.S. must pass a federal open-flame test. Some brands pass it with a barrier made with glass fiber, which can get out if the cover is removed. Know what's inside before it's in your bedroom.
Both brands say their mattress is free of fiberglass. Avocado's wool is itself the fire barrier. Birch's barrier is a separate fiber blend layer below the coils, and its wool is only a comfort layer.
Avocado Green
Fire barrier: organic wool
Avocado Green Mattress
Avocado says organic wool "serves as the flame barrier."
No fiberglass, brand says
Every Avocado Green Mattress
Avocado's FAQ: "Yes - no fiberglass as a fire barrier, and none anywhere else, in any configuration."
GOLS, GOTS and GREENGUARD Gold
The latex, cotton, and whole mattress
Outside groups certify the organic latex (GOLS), the cotton (GOTS), and low chemical emissions (Greenguard Gold).
Birch Natural
Fire barrier: fiberglass-free fiber blend
Birch Natural
Birch calls its base layer "a fire retardant fiber blend that provides protection without the use of fiberglass." Its wool is a separate comfort layer.
No fiberglass, brand says
Birch Natural
Birch says the mattress is "free of any polyurethane foams, fiberglass, formaldehyde, or pesticides," meeting Greenguard Gold's chemical emissions limits.
GOLS and GREENGUARD Gold
The organic latex and whole mattress
An outside group certifies the latex as organic (GOLS); Greenguard Gold covers chemical emissions from the finished mattress.
Check the law tag when it arrives. It lists what the bed is made of. If it doesn't settle the fiberglass question, ask the brand in writing. Never remove a cover that says not to. Why fiberglass in mattresses matters →
Living with it
How do delivery, setup and care compare?
Why this matters to you: How heavy the box is, and who carries it in, decides your first day. Avocado's Queen weighs 101 lbs; Birch doesn't publish a weight. These details decide the first day.
Weights, sizes and care rules from each brand's own pages. Delivery terms here are for the contiguous U.S.; check with the brand for Alaska, Hawaii and other areas.
Delivery, setup and care for Avocado Green and Birch Natural
Detail
Avocado Green
Birch Natural
Sizes
Twin to Cal King; a split size is listed but not sold
Twin to Cal King; no split sizes
Queen weight
101 lbs (Medium feel)
Not published on Birch's pages
How it arrives
Boxed; FedEx or UPS for Queen and smaller, a heavier doorstep delivery for King and Cal King
Compressed, rolled and boxed, by FedEx Ground
How long it takes
Ready to ship in 1 to 3 business days
Ships in 5 to 8 business days
In-home setup
Optional, $249 and up by weight, plus removal of your old bed
Optional in-home setup and old-bed removal, through Ryder
Adjustable base
Not stated on Avocado's pages
Yes; Birch sells its own adjustable base
Upkeep
Never flip it. Rotate head to toe monthly for 6 months, then every other month
Birch doesn't publish rotation or flip instructions for this model
Try it in a store
13 Avocado-run stores, plus retail partners
Partner showrooms
Both ship in a box, but Birch doesn't spell out rotation care the way Avocado does, and its pages don't state a mattress weight.
Fine print
Terms checked on each brand's site · Sep 27, 2026
What are the trial, return and exchange rules?
Why this matters to you: "Free returns" and "lifetime warranty" both come with rules. Know what a return costs you before the bed arrives.
Here's what each brand's own policy pages say, in plain words.
Avocado Green: your trial, night by night
Day 1The bed arrives
Night 30The first night you can return
Night 365The last night to ask
What each choice costs you
Keep it$0Nothing more to pay
Return it$99Taken from your refund
Swap itNo fee statedThe new bed isn't covered by a further trial or return
Not covered by the trial: one return of each product type per household
Avocado Green Mattress: a year to decide, $99 if you send it back.
Birch Natural: your trial, night by night
Day 1The box arrives
30 nights minimumBirch expects a short break-in period first
Night 120The last night to ask
What each choice costs you
Keep it$0Nothing more to pay
Return it$99A removal fee, to cover pickup
Swap itFreeFor a mattress of equal or higher value
Not stated: a fixed minimum number of nights before you can ask; Birch only says to expect a break-in period
Birch Natural: a shorter trial, the same $99 fee.
Warranty
Terms checked on each brand's site · Sep 27, 2026
What does each warranty cover, and what voids it?
Why this matters to you: A warranty covers defects, not comfort. Your bed base, stains and how deep a sag is all decide whether a claim is paid.
From Avocado's warranty page and Birch's warranty page, checked Sep 27, 2026.
Rule
Avocado Green
Birch Natural
Sag that counts
Deeper than 1.5 in
Deeper than 1.5 in
Years 1 to 10
Full coverage, non-prorated (replacement value and shipping)
Full coverage, non-prorated (repair or replace at no cost)
Year 11 on
Prorated, costs increasing 5% a year, through year 25
Prorated, for the rest of your ownership
Your bed base
5 to 6 leg supports, at least 1 center support on Queen or larger; slats no more than 5 in apart
A matching foundation or adjustable base; slats no more than 5.5 in apart
If you sell it
Ends. Original buyer only
Ends. Original buyer only
Shipping for a claim
Covered in years 1 to 10; you pay it in the prorated years
Free in years 1 to 10; a prorated charge applies after
The trade-off: Birch calls its coverage a Limited Lifetime warranty, running for as long as you own the mattress. Avocado's coverage is fixed at 25 years. Both pay in full for the first 10 years, then prorate the cost after that.
Both brands cover a dip deeper than 1.5 in, so measure it the same way for either bed.
Strip the bed down to the mattress and wait a few hours so the top layers can recover.
Lay a straight edge (a broom handle or long level) across the dip, resting on the flat parts.
Measure from the edge down to the deepest point, then photograph the ruler for your claim.
How to measure a sag before you file a claim with either brand. Drawing not to scale.
Owner reviews
Review counts change daily
What do owner and company ratings show?
Why this matters to you: Each site draws a different mix of reviewers. Brand sites rate the mattress; Trustpilot and the BBB rate the company.
Ratings as each site showed them. Brand site ratings from each product page; Trustpilot and BBB checked Sep 27, 2026.
Mattress ratings on each brand's page, and company ratings on Trustpilot and the BBB, for Avocado Green and Birch Natural
Site
Avocado Green
Birch Natural
The brand's own site
4.6 from 19,534 reviews
4.4 from 9,456 reviews
Each brand runs this review box on its own product page.
Trustpilot
1.8 from 88 reviews; profile unclaimed
4.5 from 75 reviews; profile claimed
These ratings appear on the brand's own product page. Trustpilot's smaller samples can swing more with each new review.
Better Business Bureau
A rating; not accredited
A+ rating; accredited (listed under parent company Helix Sleep's profile)
A BBB rating is the BBB's view of how a business is likely to deal with customers, based on its complaint record and other business details (how the BBB rates). It doesn't rate how the bed sleeps.
What to watch: Avocado's Trustpilot score (1.8) sits far below its own site rating (4.6), and its profile is unclaimed. Birch's Trustpilot score (4.5) sits close to its site rating, and its profile is claimed. We draw no conclusion from either number alone.
Quick Answers
Quick answers before you buy
Which is cheaper, the Avocado Green Mattress or Birch Natural?
Birch Natural, by $1,000 for a Queen ($1,399 on sale against $2,399 for Avocado's Medium feel, checked Sep 27, 2026). Avocado's price covers one of five feels; Birch sells only one.
Which mattress is firmer?
Neither publishes a single number you can compare directly. Avocado sells five feels, from Firm to Ultra Plush. Birch sells one feel, which it calls medium-firm.
Which is better for heavier sleepers?
Sleep Foundation's ratings favor Avocado's best-scoring build for side and back sleepers over 230 lbs, and call it a tie for stomach sleepers. Neither brand states a maximum sleeper weight for these models.
Which is cheaper to return?
Both charge $99. Avocado calls it a return fee; Birch calls it a removal fee. You'll get a full year to decide with Avocado and 120 nights with Birch.
Does either mattress contain fiberglass?
No, both brands say in writing. Avocado uses organic wool as its fire barrier. Birch uses a separate fiberglass-free fiber blend layer for its barrier. Its wool isn't the barrier; it's a comfort layer.
How does each one arrive?
Both ship in a box. Avocado ships Queen and smaller sizes by FedEx or UPS, and King or Cal King by a heavier doorstep delivery. You can pay extra for in-home setup. Birch ships compressed in a box, free, in 5 to 8 business days.
Which has the longer warranty?
Birch's is open-ended. It calls its coverage a Limited Lifetime warranty, lasting as long as the original owner keeps the mattress. Avocado's stops at 25 years. Both pay in full for the first 10 years; after that, you'll pay a growing share.
Brand facts come from each brand's own pages. Scores come from the outlets named. The date shows when we last checked, or when the outlet last updated.
: Rechecked both brands' pages. Corrected Birch's 30-night minimum and in-home setup, and Avocado's rotation schedule and return deductions.
: first published, with prices by size, a cost calculator, fit by position and weight, and tester scores. Fire barriers, returns and warranty rules come from each brand's own pages.
See a fact that's out of date? Tell us and we'll recheck it.
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Avocado Green
Birch Natural