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Build-Your-Own FirmnessEco-Conscious Materials

Yaasa Studios Mattress Review

Four firmness levels and GOLS-certified latex give sleepers a build-your-own mattress without leaving quality behind.

Expert Rating 9.5/10
Firmness Options4 Levels
Best ForBack Sleepers (Medium Firm)
Trial100 Nights
4 min read
Yaasa Studios Mattress Review

If you are a back sleeper looking for comfort and support, then the medium firm is for you.

Our reviewer
Editorial disclosure: Independent reviews. Commissions may be earned through links.
The Verdict

A Premium Mattress Built Around Your Firmness

Yaasa Studios starts from the premise that every sleeper is different, offering four distinct firmness levels — medium soft, medium, medium firm, and firm — with a guided quiz to help shoppers land on the right one.

Construction shifts with the firmness choice: firmer builds top out with a fully natural, GOLS-compliant latex layer, while softer builds use a California Memory Foam designed to reduce excess heat. Underneath, a viscoelastic memory foam layer blends the top comfort layer with the foundation, which is either spring coils or a dense polyurethane foam.

Testing the medium firm as a back sleeper, the balance held up: enough give from the latex top to avoid feeling overly firm, with support from a coil spring foundation that solved a history of morning soreness on past mattresses.

Material sourcing backs up the price tag — plant-based polyols in the polyurethane foams, CertiPUR-US certification, and fully natural, renewable latex on firmer builds.

At roughly $1,500 for a queen, or $1,400 with a $100 discount, Yaasa sits at the higher end of the market, but a 100-night trial takes the risk out of committing to a firmness level sight unseen.

Pros

Why We Love It

  • Four firmness levels, from medium soft to firm, with a guided quiz to help choose
  • 100% natural, renewable, GOLS-compliant latex on firmer builds
  • Plant-based, CertiPUR-US certified polyurethane foams
  • 100-night risk-free trial
Cons

Considerations

  • At about $1,500 for a queen, it's a higher-end price point
  • Construction — and feel — varies significantly by firmness level, so the quiz result matters
  • Update (dead-destination-sweep-2026-07): our affiliate link for this specific offer is currently down (the tracking/redirect no longer resolves to the merchant), so treat the code/offer above as unconfirmed until it's restored -- we're leaving the page up rather than deleting it.

Sleeping on the Medium Firm

Yaasa's quiz pointed our back-sleeping reviewer toward the medium firm build, aiming for comfort without sacrificing support after past experience with mattresses that led to a sore back.

The latex top delivered just enough cushioning without tipping into overly firm territory, while the coil spring foundation added give on top of real support. Together, the elements added up to a genuinely restful night's sleep.

A Firmness Quiz Takes the Guesswork Out

Yaasa's tutorial walks shoppers through choosing between medium soft, medium, medium firm, and firm — useful unless you already know your ideal feel.

We Recommend This To Readers Who:

  • Are a back sleeper wanting comfort and support

    The medium firm build paired a latex top with a coil spring foundation for a balance our reviewer said solved past morning soreness.

  • Care about sustainable materials

    Firmer builds use 100% natural, GOLS-compliant latex, and the foams use plant-based polyols and are CertiPUR-US certified.

  • Want a higher-end mattress and can use a discount

    At about $1,500 for a queen, a $100 discount through our link helps offset the premium price.

Craftsmanship

The Anatomy of a Build-Your-Own Mattress

Yaasa's three-layer construction changes based on which of the four firmness levels you choose.

1 TOP LAYER — Latex (firmer builds) or California Memory Foam (softer builds, reduces heat)
2 SECOND LAYER — Viscoelastic memory foam that blends the top layer with the foundation
3 FOUNDATION LAYER — Spring coils or dense polyurethane foam, depending on firmness choice
1

Top Layer

Latex (firmer builds) or California Memory Foam (softer builds, reduces heat)

2

Second Layer

Viscoelastic memory foam that blends the top layer with the foundation

3

Foundation Layer

Spring coils or dense polyurethane foam, depending on firmness choice

Investment in Custom Comfort

A queen Yaasa runs about $1,500, or $1,400 with our $100 discount.

OptionPrice

Good to Know

Discount $100 Off via Our Link
Trial 100 Nights
The Bottom Line Conclusion:

A Premium, Build-Your-Own Mattress

With four firmness levels, sustainably sourced materials, and a 100-night trial, Yaasa Studios makes it easy to find — and trust — your ideal feel.

9.5 Out of 10
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