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5 Inch Twin Size Memory Foam Mattress, Gel Cooling Bed Mattress with Breathable and Removable Cover, Medium Firm for Pressure & Pain Relief, In a Box | Fiberglass Free | CertiPUR-US Certified

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Availability: Only 1 left in stock, order soon!
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Arrives Monday, May 11
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Color: White


Size: Twin


Style: 5 Inches


Features

  • Cooling & Breathable:Enjoy a cool night's rest with this mattress twin size. Its soft, breathable knitted cover promotes constant airflow, while the air-sensing gel memory foam actively draws heat away from your body. Together, they work to regulate temperature and keep you comfortably cool all night long
  • Easy Clean & Stable Design:Practicality meets convenience. The removable, machine washable zippered cover makes refreshing your mattress simple. An anti-slip bottom keeps the twin memory foam mattress securely in place on your bed frame, ensuring steady and safe use night after night
  • Certified Safe:Rest with complete peace of mind. This bunk bed friendly twin mattress for bunk bed features a fire retardant inner cover that contains no fiberglass. All foam layers are dual certified to CertiPUR-US and OEKO-TEX Standard 100 standards, guaranteeing a healthy and safe sleep environment
  • Easy Setup in a Box:Getting your twin mattress is effortless. It arrives in a compact boxsimply unroll it and let it expand on its own. Allow 2472 hours for the mattress to fully regain its intended shape, loft, and feel

Brand: Sunny Heart


Size: Twin


Product Dimensions: 75"L x 5"W x 38"Th


Item Weight: 19.8 Pounds


Item Firmness Description: Medium Firm


Top Style: Gel Top, Tight Top


Cover Material: Polyester


Number of Layers: 1.0


Fill Material: Gel Memory Foam


Weight Limit: 1200 Pounds


Item Firmness Description: Medium Firm


Number of Layers: 1.0


Weight Capacity Maximum: 1200 Pounds


Additional Features: Breathable, Medium Firm Support, Pressure Relief, Removable Cover


Construction Type: Memory Foam


Size: Twin


Item Dimensions L x W x Thickness: 75"L x 5"W x 38"Th


Item Weight: 19.8 Pounds


Item Thickness: 5 Inches


Item Dimensions: 75 x 5 x 38 inches


Item Depth: 38 inches


Cover Material: Polyester


Fill Material: Gel Memory Foam


Mattress Comfort Layer Material: Gel Memory Foam


Material Type: Memory Foam


Brand Name: Sunny Heart


Model Name: MAT12


Product Benefits: Pressure Relief, Temperature Regulation, Hypoallergenic


Model Number: MAT12


UPC: 199581116122


Manufacturer: Sunny Heart


Set Name: Single


Manufacturer Part Number: MAT12


Unit Count: 1.0 Count


Included Components: Memory Foam


Item Type Name: Bed Mattress Conventional


top-style: Gel Top, Tight Top


Color: White


Style Name: 5 Inches


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 11

Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • So Supportive and Comfortable
Color: White Size: Twin Style: 5 Inches
We bought this 5-inch twin memory foam mattress and are so impressed! It’s the perfect medium-firm feel—supportive yet comfortable. The gel cooling really helps prevent overheating, and the removable cover is a huge plus. I also love that it’s fiberglass free. Great quality for the price!
Reviewed in the United States on February 16, 2026 by Elle Liss

  • BEST Value!!
Color: White Size: Twin Style: 8 Inches
Impressed with this twin memory foam mattress. It expanded to full size very quickly after opening and had very little odor. The foam feels high quality—both comfortable and supportive. Setup was simple, and it’s a great value for a mattress that ships in a box.
Reviewed in the United States on March 6, 2026 by Avi

  • Perfect for top bunk
Color: White Size: Twin Style: 6 Inches
Mattress arrived on time. I bought it for the top bunk of bunk bed for grand kids. The price was great for as little as they will use it. It filled out within a day with no problem and is thick and firm.
Reviewed in the United States on March 14, 2026 by Lou

  • resting fully
Color: White Size: Twin Style: 8 Inches
This mattress is super comfortable and soft with its viscoelastic foam. The size is perfect, and the material is very breathable. You'll definitely sleep like you're on a cloud. Plus, it comes very well packaged and is easy to install on your bed.
Reviewed in the United States on March 5, 2026 by tania vargas

  • Love it, buy it!!
Color: White Size: Twin Style: 8 Inches
Amazing value! It came so fast it’s so comfortable, very easy to to lift not heavy :) super comfy, amazing Quality! Love it so easy
Reviewed in the United States on February 23, 2026 by Precious Wasef

  • Hard as a rock. Once you're in you can't move.
Color: White Size: Short King Style: 10 Inches
So uncomfortable. I've never woken up in so much pain before we bought this mattress. Just awful.
Reviewed in the United States on April 14, 2026 by Kim whittle

  • Slightly wider
Color: White Size: Twin Style: 8 Inches
Slightly bigger, but still good quality.
Reviewed in the United States on March 15, 2026 by Amazon Customer

  • Great mattress!
Color: White Size: Twin Style: 8 Inches
Very comfortable!!! Would highly recommend!!
Reviewed in the United States on March 15, 2026 by Kelz

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