Best Mattresses Under $400 in 2025: Quality Sleep at an Affordable Price

A comfortable and supportive mattress doesn’t have to be expensive. Whether you prefer memory foam, hybrid, or innerspring, there are plenty of great mattresses under $400 that provide pressure relief, motion isolation, and durability. The right mattress can improve sleep quality by supporting your body and reducing discomfort—all within your budget. This guide will help you find the best mattress under $400 based on your sleep position, firmness preference, and comfort needs.

Key Highlights

  • High-quality mattresses for under $400
  • Memory foam, hybrid, and innerspring options available
  • Pressure-relieving and motion-isolating designs for better sleep
  • Twin, Full, Queen, and some King sizes available

Explore The Best Mattresses Under $400

ZINUS 10 Inch Green Tea Memory Foam Mattress [New Version], Full, Fiberglass free, Medium Firm...
  • FOR GREAT SLEEP AND A CLEAN PLANET – Featuring our patented zoned pressure relief technology designed...
  • COMFORTABLE SUPPORT - Pressure-relieving memory foam conforms to the shape of your body while enhancing...
  • ALL NIGHT FRESHNESS - The all-natural green tea and purified charcoal infusions work together to help...
  • CERTIFIED SAFE MATERIALS – Crafted from high-quality CertiPUR-US certified foam and wrapped with an...
Sale
GAESTE 8 Inch Full Cooling Gel Memory Foam Mattress for Cool Sleep Medium Firm CertiPUR-US...
  • Sleep Cool, Sleep Well - Keep your nights cool and sweat-free with our cooling gel memory foam....
  • Budget-Friendly Bliss - Get quality sleep at a price you’ll love. Perfect for those who want to sleep...
  • Sweet Spot Comfort - Discover the perfect blend of support and softness with our medium firmness...
  • Certified safe materials - Our mattress meets CertiPUR-US certified foam and OEKO-TEX certified cover....
AIRCLUB Foam Mattress Pad – Replacement Cushion for AIRCLUB Unit, 1 Pack
  • Custom Fit for AIRCLUB Unit – This replacement pad fits securely into compatible AIRCLUB units,...
  • Textured for Comfort – Dimpled foam surface promotes airflow and helps maintain comfort during regular...
  • Easy-to-Clean Cover – The fabric cover can be removed for cleaning, helping you keep the surface fresh...
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sofree bedding Full Size Mattress, 10 Inch Memory Foam Hybrid Mattress Full, Pocket Spring...
  • Premium Material for Health: Sofree bedding full size mattress adopted 3D soft knitted fabric on the top...
  • Pocket Spring for Better Support: Our hybrid mattress full constructed by hundreds of individual pocketed...
  • Suitable for All Sleepers: This 10 inch mattress full size is ergonomically designed to conform your...
  • Motion Isolation for Soundly Sleep: The individual innerspring pocket coils in our full bed mattress work...
Sale
Duchessz Queen Mattress, 12 Inch Hybrid Mattresses Black with Gel Memory Foam and Individually...
  • 【Supportive for Various Sleeping Positions】: This medium firm queen mattress is designed to offer...
  • 【Elevate Your Sleep Experience】: Upgrade your sleep sanctuary with our CertiPUR US and Oeko-Tex...
  • 【Silent Sleep, Motion Isolated】: Enjoy a peaceful night's sleep without disturbances with our medium...
  • 【Advanced Edge Support for Maximum Comfort】: Engineered with premium high-density foam, the luxurious...

Types of Mattresses Under $400

In this price range, you can find various mattress types, each offering different levels of comfort and support:

TypeProsCons
Memory FoamConforms to body shape, great for pressure relief, absorbs motionMay retain heat, slight initial odor
HybridCombines foam and coils for support and breathabilityHeavier than foam models
InnerspringBouncy, breathable, good edge supportLess contouring, can be noisy over time
Latex (Blended/Synthetic)Hypoallergenic, responsive, durableFirmer feel, limited availability under $400

Important Aspects When Choosing The Best Mattress Under $400

Firmness Level

Your sleep position plays a major role in choosing the right firmness level:

  • Soft (Plush) – Best for side sleepers, as it cushions shoulders and hips.
  • Medium – Ideal for combination sleepers who need balanced support.
  • Firm – Best for back and stomach sleepers, keeping the spine aligned.

Mattress Size

Many mattresses under $400 come in various sizes:

  • Twin/Twin XL – Ideal for kids, teens, and smaller spaces.
  • Full – Great for single sleepers needing more space.
  • Queen – The most popular size for couples and single adults.
  • King – Available in some models but harder to find in this price range.

Cooling Features

If you sleep hot, look for:

  • Gel-infused memory foam to absorb heat.
  • Breathable covers for moisture control.
  • Hybrid models with coils for improved airflow.

Motion Isolation

If you share a bed, motion isolation is key. Memory foam and hybrid mattresses help absorb movement so you won’t disturb your partner.

Durability and Warranty

A good mattress in this price range should last 5-8 years. Look for brands that offer at least a 10-year warranty.

Tips for Using a Mattress Under $400

  • Allow full expansion – Many mattresses are compressed in a box and need 24-72 hours to fully expand.
  • Use a supportive base – A platform bed or box spring helps prevent sagging.
  • Rotate it regularly – Rotating every 3-6 months promotes even wear.
  • Consider a mattress topper – If it feels too firm, a foam topper can add extra comfort.

Popular Questions About Mattresses Under $400

Is $400 enough for a high-quality mattress?

Yes! Many memory foam, hybrid, and innerspring mattresses in this price range offer good comfort, durability, and support for long-term use.

What is the best mattress type for side sleepers under $400?

A medium-soft memory foam or hybrid mattress is best, as it relieves pressure on shoulders and hips while offering good support.

Can I get a King-size mattress for under $400?

Yes, but options are limited. Most mattresses in this range are Twin, Full, or Queen, though some affordable King-size foam models are available.

How long will a mattress under $400 last?

With proper care, a mattress under $400 should last 5-8 years, depending on the materials and usage.

Finding a comfortable and supportive mattress under $400 is easier than you think. Whether you need memory foam, hybrid, or innerspring, there are plenty of budget-friendly options that provide great sleep without overspending.

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