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Firmness

The softest mattresses we track.

Illustration of a foam mattress — not a product photo
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No. 1Casper Cloud One79 Match Score

Every mattress whose published firmness reaches medium-soft. None of the mattresses we track is rated below 3/10, so nothing here is truly soft, and we say so rather than stretch the word.

7mattresses on this page
3 ranked · scoring model v0.2

Ranked for

Side sleeper, 160 lb, prefers a soft feel, sleeps neither hot nor cold, sleeps alone.

Ranking rule

Ordered by Match Score for a reference side sleeper who prefers a soft feel. Mattresses with fewer than three of the six scored dimensions backed by a published spec or an independent rating are listed separately, not ranked. Sponsorship never changes a score. Methodology

Rank these for your own body

The best score here is a Good match, not Strong. A side sleeper who wants a soft feel sits outside the firmness band the engine recommends for supporting a 160 lb spine, so the preference costs points on every mattress. The ranking shows that cost rather than hiding it.

The top three

Compare the top 3
  1. Illustration of a foam mattress — not a product photo
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    Rank 1: Casper

    Casper Cloud One

    Good matchMatch Score

    Good match for a side sleeper: strongest on pressure relief and support & alignment.

    • Excellent pressure relief: at about 4/10 firmness, shoulders and hips can settle in rather than press against the surface. That matters most for side sleepers.
    • Its firmness (about 4/10) sits inside the 3–6/10 range that keeps a side sleeper at this weight aligned.

    All-foamMedium-soft 4/10100 nights

    $1,099 Queen

    View mattress
  2. Illustration of a hybrid mattress — not a product photo
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    Rank 2: Avocado

    Avocado Green Mattress

    Good matchMatch Score

    Good match for a side sleeper: strongest on support & alignment and pressure relief.

    • Its firmness (about 5.8/10) sits inside the 3–6/10 range that keeps a side sleeper at this weight aligned.
    • Strong pressure relief: at about 5.8/10 firmness, shoulders and hips can settle in rather than press against the surface. That matters most for side sleepers.
    • Watch out: Different feel from what you asked for. You said you prefer a firmness around 2/10, but this mattress is about 5.8/10 - a 3.8-point difference.

    Available in a softer option

    HybridSeveral options · 3–8.5/10365 nights

    Queen price not yet verified

    View mattress
  3. Illustration of a hybrid mattress — not a product photo
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    Rank 3: Leesa

    Leesa Sapira Chill Hybrid

    Good matchMatch Score

    Good match for a side sleeper: strongest on support & alignment and pressure relief.

    • Its firmness (about 5.8/10) sits inside the 3–6/10 range that keeps a side sleeper at this weight aligned.
    • Strong pressure relief: at about 5.8/10 firmness, shoulders and hips can settle in rather than press against the surface. That matters most for side sleepers.
    • Watch out: Different feel from what you asked for. You said you prefer a firmness around 2/10, but this mattress is about 5.8/10 - a 3.8-point difference.

    Available in a softer option

    HybridSeveral options · 3–8.5/10120 nights

    Queen price not yet verified

    View mattress

The full ranking

7 mattresses · 3 ranked

The top three above are every ranked mattress in this group.

Not enough data to rank 4

Fewer than three of the six scored dimensions backed by a published spec or an independent rating, so the score leans on type-based estimates. Listed alphabetically, not ranked.

  • Illustration of a hybrid mattress — not a product photo

    Brooklyn Bedding

    Brooklyn Bedding Signature Hybrid

    HybridSeveral options · 4–8/10120 nights

    Available in a softer option

    $1,098.75 Queen

    Not ranked

  • Illustration of a hybrid mattress — not a product photo

    Purple

    Purple RestorePlus Hybrid

    HybridMedium-soft 4/10100 nights

    $3,599 Queen

    Not ranked

  • Illustration of an innerspring mattress — not a product photo

    Saatva

    Saatva Classic

    InnerspringSeveral options · 3–8/10365 nights

    Available in a softer option

    $1,904 Queen

    Not ranked

  • Illustration of a hybrid mattress — not a product photo

    Saatva

    Saatva Rx

    HybridMedium-soft 3–4/10365 nights

    Queen price not yet verified

    Not ranked

Read before you choose.

Related rankings

Everything else

Search and filter all 37 mattresses by type, firmness, price, materials and independent ratings.

Ranked for a reference sleeper. Now rank them for you.

A few questions about how you sleep. The same engine re-scores all 37 mattresses for your body and explains every number.

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