Subfun 8 inch King Memory Foam Mattress, Dual Cooling Gel Bamboo Charcoal, CertiPUR-US Certified, Bed-in-a-Box
Subfun 8 inch King Memory Foam Mattress, Dual Cooling Gel Bamboo Charcoal, CertiPUR-US Certified, Bed-in-a-Box
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SUBFUN

Subfun 8 inch King Memory Foam Mattress, Dual Cooling Gel Bamboo Charcoal, CertiPUR-US Certified, Bed-in-a-Box

4.5 stars out of 31 reviews
(4.5)|
31 ratings
Subfun 8 inch King Memory Foam Mattress, Dual Cooling Gel Bamboo Charcoal, CertiPUR-US Certified, Bed-in-a-BoxSubfun 8 inch King Memory Foam Mattress Dual Cooling Gel Bamboo Charcoal CertiPUR US Certified Bed in a BoxSubfun 8 inch California King Memory Foam Mattress Dual Cooling Gel Bamboo Charcoal CertiPUR US Certified Bed in a BoxSubfun 14 inch Supreme Twin Memory Foam Mattress Ultimate Luxury Max Cooling Support CertiPUR US CertifiedSubfun 6 inch Twin Memory Foam Mattress Bamboo Charcoal Cooling CertiPUR US Certified Bed in a BoxSubfun 10 inch Twin XL Memory Foam Mattress Triple Layer Cooling Orthopedic Support CertiPUR US CertifiedSubfun 6 inch California King Memory Foam Mattress Bamboo Charcoal Cooling CertiPUR US Certified Bed in a BoxSubfun 10 inch Queen Memory Foam Mattress Triple Layer Cooling Orthopedic Support CertiPUR US CertifiedSubfun 6 inch Full Memory Foam Mattress Bamboo Charcoal Cooling CertiPUR US Certified Bed in a BoxSubfun 6 inch Queen Memory Foam Mattress Bamboo Charcoal Cooling CertiPUR US Certified Bed in a BoxSubfun 10 inch Full Memory Foam Mattress Triple Layer Cooling Orthopedic Support CertiPUR US CertifiedSubfun 8 inch Full Memory Foam Mattress Dual Cooling Gel Bamboo Charcoal CertiPUR US Certified Bed in a BoxSubfun 6 inch King Memory Foam Mattress Bamboo Charcoal Cooling CertiPUR US Certified Bed in a BoxSubfun 14 inch Supreme Twin XL Memory Foam Mattress Ultimate Luxury Max Cooling Support CertiPUR US CertifiedSubfun 8 inch Twin Memory Foam Mattress Dual Cooling Gel Bamboo Charcoal CertiPUR US Certified Bed in a BoxSubfun 10 inch Twin Memory Foam Mattress Triple Layer Cooling Orthopedic Support CertiPUR US CertifiedSubfun 12 inch Luxury King Memory Foam Mattress Plush Cloud Comfort Dual Cooling Gel Layers CertiPUR US CertifiedSubfun 10 inch King Memory Foam Mattress Triple Layer Cooling Orthopedic Support CertiPUR US CertifiedSubfun 12 inch Luxury Queen Memory Foam Mattress Plush Cloud Comfort Dual Cooling Gel Layers CertiPUR US CertifiedSubfun 14 inch Supreme Twin Memory Foam Mattress Ultimate Luxury Max Cooling Support CertiPUR US CertifiedSubfun 6 inch Twin XL Memory Foam Mattress Bamboo Charcoal Cooling CertiPUR US Certified Bed in a BoxSubfun 12 inch Luxury Twin XL Memory Foam Mattress Plush Cloud Comfort Dual Cooling Gel Layers CertiPUR US CertifiedSubfun 10 inch California King Memory Foam Mattress Triple Layer Cooling Orthopedic Support CertiPUR US CertifiedSubfun 14 inch Supreme Twin Memory Foam Mattress Ultimate Luxury Max Cooling Support CertiPUR US CertifiedSubfun 8 inch Queen Memory Foam Mattress Dual Cooling Gel Bamboo Charcoal CertiPUR US Certified Bed in a BoxSubfun 14 inch Supreme Full Memory Foam Mattress Ultimate Luxury Max Cooling Support CertiPUR US CertifiedSubfun 12 inch Luxury Full Memory Foam Mattress Plush Cloud Comfort Dual Cooling Gel Layers CertiPUR US CertifiedSubfun 12 inch Luxury California King Memory Foam Mattress Plush Cloud Comfort Dual Cooling Gel Layers CertiPUR US CertifiedSubfun 14 inch Supreme Queen Memory Foam Mattress Ultimate Luxury Max Cooling Support CertiPUR US Certified
Bed Size:King-Out of stock
Mattress Thickness:8 in-Out of stock

Key item features

  • Perfect for:
    • Hot sleepers needing temperature control
    • Couples wanting motion isolation
    • Back and side sleepers seeking pressure relief

  • KEY FEATURES:

  • Dual Cooling System
    2" Bamboo Charcoal Foam + 2" Liquid Gel Flex Foam combine for maximum heat dissipation

  • Pressure-Relieving Comfort
    Gel-infused foam layer cradles hips and shoulders while reducing motion transfer

  • Stable Support Core
    4" High-Density Flex Support Base provides edge-to-edge stability and prevents sagging

  • Breathable Jacquard Cover
    Premium fabric enhances airflow and adds luxurious feel

  • Easy Setup Design
    Compressed shipping - expands fully in 24 hours with minimal off-gassing

  • PERFECT FIT FOR YOUR SPACE:

  • TWIN (38"x75")
    • Teen bedrooms
    • College dorms
    • Small apartments

  • FULL (54"x75")
    • Solo adult bedrooms
    • Studio apartments
    • Guest rooms

  • QUEEN (60"x80")
    • Couples bedrooms
    • Motion isolation for partners
    • Platform beds

  • KING (76"x80")
    • Master bedrooms
    • Spacious sleeping
    • Tall sleepers (up to 6'8")

  • SOLVES SLEEP PROBLEMS:

  • Overheating at night? Dual cooling layers regulate temperature
    Partner disturbing sleep? Gel foam absorbs movement
    Waking up achy? Medium-firm feel supports joints
    Limited budget? Premium features at mid-range price

  • FREE Shipping
    10-Year Warranty - Quality Guaranteed!
    Unbox and enjoy cooler sleep tonight

Current price is $269.00
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Customer ratings & reviews

4.5 out of 5 stars
stars31 ratings13 reviews
How item rating is calculated
  1. 5 stars74% (23)
  2. 4 stars13% (4)
  3. 3 stars6% (2)
  4. 2 stars0% (0)
  5. 1 star6% (2)

Reviews summary

Pros
  • : Helps prevent morning aches and pains.
  • : Provides sufficient cushioning without being too firm.
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Showing 1-3 of 13 reviews

Aug 30, 2025
Jacquie
Item details
Bed size: Queen
Mattress thickness: 14 in
Sold byElevenDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Comfy Mattress

I recently purchased this mattress, and I couldn't be happier with my decision! This mattress deserves every one of its five stars. From the moment I laid down, I felt an incredible balance of comfort and support—perfectly contouring to my body while keeping my spine aligned. The materials feel high-quality, breathable, and cool, which has been a game-changer for a hot sleeper like me. Setup was a breeze. After sleeping on it, I wake up refreshed with no aches or pains. Highly recommend to anyone looking for a top-notch mattress!

Helpful?5K8HX3H7ORHC17113813135
Aug 30, 2025
Aaron
Item details
Bed size: Twin
Mattress thickness: 10 in
Sold and shipped byEleven
5 out of 5 stars review

Verified Purchase

great mattress

I'll be honest, I wasn't expecting much when I ordered this mattress from Walmart because of the price point. But after sleeping on it for a few weeks, I'm pleasantly surprised. It expanded fully within 24 hours, had very little odor, and feels supportive in all the right places. I'm a side sleeper and usually wake up with sore shoulders or hips on cheaper mattresses, but that hasn't been the case here. It's firm enough to keep my back aligned, yet still has enough cushion to be comfortable. My spouse is a stomach sleeper and says it works great for them too. What I love most is how budget-friendly it is without feeling “cheap.” If you're hesitant about ordering a mattress online, this one proves you don't have to spend a fortune to sleep well. Highly recommend—especially for first apartments, guest rooms, or anyone who doesn't want to spend thousands on a name-brand mattress

Helpful?5K8HX3H7ORHC17113813135
Feb 4, 2026
Krista
Item details
Bed size: Queen
Mattress thickness: 6 in
Sold and shipped byEleven
5 out of 5 stars review

Verified Purchase

6” Mattress

Was skeptical about a 6” mattress if it would be comfortable or even enough support. For the loft I bought it for, I couldn't be happier with my purchase. It barely had a smell (if at all) when we opened it and I loved how they wrapped it so that it didn't spring open into our face and knock us out as you witnessed with some mattress'. It surprisingly very comfy and works perfectly. Highly recommend for bunks or lofts.

Incentivized Review
Helpful?5K8HX3H7ORHC17113813135