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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
- General Note: Please allow 24 - 72 hours for your Mattress to regain its full shape. Any memory foam will...
- COOL and HIGHLY BREATHABLE- Novilla queen size mattress constructed with a 4-layer all-foam system. On...
- RELIEVES PAINS and DAMPENS PARTNER’S MOVEMENTS - Novilla 12'' gel memory foam medium firm queen size...
- A SAFE and COMFORTABLE SLEEP ENVIRONMENT- Mattress is made of CertiPUR-US Certified foam, without any...
- Pressure Relief Memory Foam: This full mattress uses patented premium memory foam material that provides...
- Suitable Support for Everyone and All Sleep Positions: Matress of EGOHOME has a high degree of fit with...
- Refreshing Cool Sensation: The process we use makes the mattress have a special bubble hole structure,...
- Stable and Reliable Quality: The internal molecular structure of the memory foam used in this full...
- ✅ ⛺ SECURE FIT ON AIR MATTRESSES – Built-in corner straps lock your fitted sheet tight on...
- ✅ 🏕️ DESIGNED FOR CAMP & INFLATABLE BEDS – This sheet set stays firmly in place on air...
- ✅ 🌙 UNINTERRUPTED SLEEP ON INFLATABLES – Corner straps prevent bunching or sliding even if air...
- ✅ 🚐 CAMPING-TO-GUEST VERSATILITY – Use on airbeds in tents, guest rooms, or travel rigs—same...
- ※【General Note】: Please allow 24 - 72 hours for your Mattress to regain its full shape. Any memory...
- ※【Quality Certification】: Upgrade your sleep sanctuary with our CertiPUR US and Oeko-Tex Standard...
- ※【Excellent Craftsmanship】:Mattress are constructed with a 5-layer full foam system and 1-layer...
- ※【Motion Isolation】：Hybrid mattress in a box has built-in high-quality independent bagged springs...
- 【Effectively Release Pressure】The 10 inch full mattress uses independent pocket springs, which...
- 【Excellent Quieting Effect】 During sleep, the most annoying thing is the noise made by the mattress....
- 【Breathable】: The full is made of high-density material that is very comfortable and breathable,...
- 【Multiple Sizes Available】 Mattress size requirements vary depending on bed type and bedroom size....
Types of Mattresses Under $400
In this price range, you can find various mattress types, each offering different levels of comfort and support:
| Type | Pros | Cons |
|---|---|---|
| Memory Foam | Conforms to body shape, great for pressure relief, absorbs motion | May retain heat, slight initial odor |
| Hybrid | Combines foam and coils for support and breathability | Heavier than foam models |
| Innerspring | Bouncy, breathable, good edge support | Less contouring, can be noisy over time |
| Latex (Blended/Synthetic) | Hypoallergenic, responsive, durable | Firmer 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.
