Best Soft Mattresses 2026: Comparison, Tests & Reviews

Best Soft Mattresses 2026: Comparison, Tests & Reviews

Updated on 23/08/2026 — Written by the Matelas Expert team

Our quick verdict: a soft mattress (firmness 3-4/10) hugs your body and reduces pressure points — provided you pick the right model for your body type. After 4 weeks of testing, our overall pick is the Wopilo Hybride (8.5/10), our natural pick the Kipli Premium (8.6/10), our best value the Emma Original Lite (8.4/10). Prices recorded 23/08/2026.

How we tested these soft mattresses

Each model was tested for at least 30 nights by our team, with special attention to pressure distribution (shoulders, hips) and lumbar support — the risk of a too-soft mattress being poor spinal support. Scored criteria: comfort, support, motion isolation, breathability, edge support, durability. Dated prices. Our methodology →

Soft mattress comparison table (prices recorded 23/08/2026)

The 6 best soft mattresses tested in 2026

1. Wopilo Hybride — Overall winner

Open-cell viscoelastic foam + perforated latex + 7-zone springs: it wraps the shoulders and hips while keeping firm support in depth — the definition of a good soft mattress.

Pros: soft top + deep support · excellent ventilation (latex + springs) · eco materials · 100-night trial

Cons: high price · insufficient stomach support for heavier sleepers

Verdict: the best soft mattress for side sleepers and light-to-medium body types.

2. Kipli Premium — Best natural soft mattress

Reversible: its soft face (4/10) delivers natural plushness — latex conforms to the body without the "sinking" memory-foam feel, with exceptional breathability and durability (CATAS, GOLS certified).

Pros: natural latex · reversible (soft/firm) · breathability · certified durability · hypoallergenic

Cons: very high price · very heavy

Verdict: the natural soft mattress for eco-conscious sleepers.

3. Emma Original Lite — Best value

100% memory foam with a soft feel at an accessible price. Perfect for light body types and side sleepers — with Emma's 100-night trial and 10-year warranty.

Pros: unbeatable price · soft feel · 100-night trial · 10-year warranty

Cons: limited support above 80 kg · retains heat

Verdict: the best soft mattress on a budget.

4. Matt Sleeps — Adjustable (6 levels)

Firmness adjustable over 6 levels, from soft to firm. Ideal if you don't know which firmness suits you, or for partners with different preferences.

Pros: adjustable firmness (the 2 softest configs = real plush) · motion isolation · 120-night trial · Tencel cover

Cons: average breathability · limited support for very heavy body types

Verdict: the "à la carte" soft mattress — start soft, adjust.

5. LatexBio — Soft latex

Dense natural latex (≥ 65 kg/m³) on its soft face: elastic and plush feel, reversible, 100% vegan and hypoallergenic, with a 15-year warranty — the longest on the market.

Pros: dense natural latex · reversible · 15-year warranty · hypoallergenic · very breathable

Cons: high price · soft face only for light/medium body types

Verdict: the most durable soft natural mattress.

6. Mello Relax — Enveloping

Our memory-foam reference: 3 layers including viscoelastic, enveloping feel and pressure relief. Made in France, UFC Que Choisir certified. Note: its medium-firm feel (6/10) sits at the edge of "soft" — perfect for an in-between.

Pros: enveloping · made in France · UFC certification · motion isolation · price

Cons: average breathability · too firm for very light sleepers

Verdict: the soft-medium mattress for side sleepers.

What is a soft mattress exactly?

Firmness is measured from 1 to 10: a soft (plush) mattress is 3-4/10. The body sinks slightly, shoulders and hips are "cushioned" rather than resting flat. Soft mattresses are almost always memory-foam based (viscoelastic), which conforms to the body. Our full firmness guide →

For whom?

• Side sleepers: reduces pressure on shoulder and hip;
• Light body types (under 60 kg): they don't sink enough into a firm mattress;
• Those who love the "cloud" feel.

For whom NOT?

• Over 90 kg: risk of poor lumbar support and sagging;
• Stomach sleepers: a too-soft mattress tilts the pelvis and forces arching;
• Back pain sufferers: prefer medium-firm (6/10) with lumbar support, unless medical advice says otherwise.

How to choose your soft mattress

• Firmness: 3-4/10. Beware of "medium" marketed as "soft": always check the /10 rating.
• Density: memory foam ≥ 45 kg/m³, ideally 50+ to stay plush without deforming.
• Thickness: 22-27 cm for comfort; below 20 cm, medium body types "bottom out".
• Lumbar support: prefer a soft mattress with a reinforced lumbar zone or firm support base (high-density HR foam or springs).
• Heat: memory foam heats up; pick gel/graphite-infused foam or a hybrid with springs if you sleep hot.
• Labels: Oeko-Tex (cover), CertiPUR (foams), 10-year warranty, 100-night trial.

Soft vs firm: what our tests say?

The great debate. Our 30-night results: side sleepers find firm (7/10) mattresses uncomfortable within 2 weeks (shoulder pressure), while back sleepers over 80 kg find soft (3-4/10) mattresses "hollow" within 3 weeks. The right mattress matches your position AND body type: soft for light side sleepers, medium for average back sleepers, firm for stomach sleepers and heavy body types.

Soft mattress price ranges (recorded 23/08/2026)

Dated records 23/08/2026, excluding promos. Today's best deals →

Our final verdict

• Best soft mattress overall: Wopilo Hybride
• Best natural: Kipli Premium
• Best value: Emma Original Lite
• Adjustable: Matt Sleeps

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