Best Soft Mattresses
Soft doesn't mean unsupportive — the best soft mattresses have a plush, cradling feel at the top while maintaining a firm, stable support core underneath. This distinction is critical: a mattress that's soft all the way through will sag and cause back pain. We ranked soft mattresses (1–5 on the firmness scale) that maintain support integrity despite their plush feel.
How We Ranked
- ✓Firmness 3–5 (soft to medium-soft)
- ✓Firm support core despite soft top
- ✓Excellent pressure relief
- ✓Good motion isolation
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Top Picks at a Glance
Compare top 3 side-by-side →| Rank | Mattress | Price | Firmness | Cooling | Trial | Score |
|---|---|---|---|---|---|---|
| #1 | Helix Sunset Elitehybrid | $2,812 $3,749 | 2.5/10 | advanced | 120n | 8.6 |
| #2 | Helix Sunsethybrid | Check Helix | 2.5/10 | low | 100n | 7.8 |
| #3 | Helix Moonlight Luxehybrid | Check Helix | 3/10 | good | 100n | 8.5 |
| #4 | Amerisleep AS4foam | Check Amerisleep | 3.5/10 | average | 100n | 7.8 |
| #5 | Avocado Luxury Organic Mattress - Ultra Plush Box-tophybrid | $5,839 $7,299 | 4/10 | excellent | 365n | 9 |
Our Best Overall pick — glaciotex elite cooling cover included, a 120-night trial, and a 99-year warranty.
The Helix Sunset Elite is a hybrid mattress at $2,812 (Queen) with 2.5/10 firmness. Its plush comfort layers provide the cradling softness side sleepers need while the firm base prevents body-impression sagging. It earns its place thanks to glaciotex elite cooling cover included.
- ✓GlacioTex Elite Cooling Cover included
- ✓15 inch luxury profile
- ✓Microcoil comfort layers
Our Best Value pick — strong specs at this price, including softest model in standard helix line.
The Helix Sunset is a hybrid mattress at $1,099 (Queen) with 2.5/10 firmness. Its plush comfort layers provide the cradling softness side sleepers need while the firm base prevents body-impression sagging. It earns its place thanks to softest model in standard helix line.
- ✓Softest model in standard Helix line
- ✓Excellent pressure relief for lightweight sleepers
- ✓120-night trial
Our Premium Pick — top-tier construction and softest helix luxe — maximum pressure relief for side sleepers.
The Helix Moonlight Luxe is a hybrid mattress at $1,899 (Queen) with 3/10 firmness. Its plush comfort layers provide the cradling softness side sleepers need while the firm base prevents body-impression sagging. It earns its place thanks to softest helix luxe — maximum pressure relief for side sleepers.
- ✓Softest Helix Luxe — maximum pressure relief for side sleepers
- ✓Tencel moisture-wicking cover
- ✓Zoned pocketed coils prevent bottoming out under soft comfort layers
The Amerisleep AS4 is a foam mattress at $1,149 (Queen) with 3.5/10 firmness. Its plush comfort layers provide the cradling softness side sleepers need while the firm base prevents body-impression sagging. It earns its place thanks to medium-soft feel excellent for side sleepers who need shoulder and hip relief.
- ✓Medium-soft feel excellent for side sleepers who need shoulder and hip relief
- ✓HIVE® hex cutouts in the base layer provide zoned support
- ✓Plant-based Bio-Pur foam more breathable than traditional memory foam
The Avocado Luxury Organic Mattress - Ultra Plush Box-top is a hybrid mattress at $5,839 (Queen) with 4/10 firmness. Its plush comfort layers provide the cradling softness side sleepers need while the firm base prevents body-impression sagging. It earns its place thanks to softest avocado adult mattress in this catalog set.
- ✓Softest Avocado adult mattress in this catalog set
- ✓Deepest pressure relief
- ✓Split King sold on checked page
The Helix Moonlight Elite is a hybrid mattress at $2,812 (Queen) with 4/10 firmness. Its plush comfort layers provide the cradling softness side sleepers need while the firm base prevents body-impression sagging. It earns its place thanks to glaciotex elite cooling cover included.
- ✓GlacioTex Elite Cooling Cover included
- ✓15 inch luxury profile
- ✓Microcoil comfort layers
The Serta iComfortPro Level Two Plush is a memory foam mattress at $2,799 (Queen) with 4/10 firmness. Its plush comfort layers provide the cradling softness side sleepers need while the firm base prevents body-impression sagging. It earns its place thanks to latex foam is designed for responsive pressure relief and breathability.
- ✓Latex foam is designed for responsive pressure relief and breathability
- ✓CoolFeel Pro fabric and breathable latex target hot-sleeper comfort
- ✓All-foam construction is designed to limit partner motion
The Casper Cloud One is a memory foam mattress at $999 (Queen) with 4.5/10 firmness. Its plush comfort layers provide the cradling softness side sleepers need while the firm base prevents body-impression sagging. It earns its place thanks to plusher feel than the one.
- ✓Plusher feel than The One
- ✓Core+ base adds support with a softer surface
- ✓Good fit for pressure relief seekers who still want foam motion isolation
The Lull Original is a foam mattress at $679 (Queen) with 5/10 firmness. Its plush comfort layers provide the cradling softness side sleepers need while the firm base prevents body-impression sagging. It earns its place thanks to 365-night trial matches nectar — best trial period available for under $1,000.
- ✓365-night trial matches Nectar — best trial period available for under $1,000
- ✓Lifetime warranty at a budget-friendly price
- ✓Three foam layers provide meaningful pressure relief
The PlushBeds Botanical Bliss is a latex mattress at $3,148 (Queen) with 5/10 firmness. Its plush comfort layers provide the cradling softness side sleepers need while the firm base prevents body-impression sagging. It earns its place thanks to gols organic latex + gots organic cotton/wool.
- ✓GOLS organic latex + GOTS organic cotton/wool
- ✓GREENGUARD Gold + OEKO-TEX + eco-INSTITUT certified
- ✓Customizable firmness (Medium or Medium-Firm)
After You Buy: Mattress Care
A new mattress is the start, not the end. These short care guides help your mattress last longer and protect the warranty.
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