Bunkie Board King Size (76x80")-Heavy Duty Anti-Sag Low Profile Mattress Support, Breathable Noise Minimizing & Moisture Resistant Non-Slip Foundation for Platform Beds, Slatted Frames & Box Springs
Condition: New
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FREE 30-day refund/replacement
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Availability:
In Stock.
Arrives
Friday, Jul 10
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Size: KING(76X80)
Features
- Perfect Fit for Standard KING Beds: Designed to match standard twin bed frames exactly (76" x 80"), ensuring a precise and stable fit. Say goodbye to mismatched sizesthis bunkie board provides a flawless foundation for your mattress.
- Universal Compatibility with Any Bed Frame: Works seamlessly with all bed frame types, including platform beds, slatted frames, and traditional box spring setups. Whether you're upgrading an old foundation or need a versatile solution for a new frame, this bunkie board has you covered.
- Low-Profile Upgrade for Modern Spaces: Its slim, sleek design serves as a perfect alternative to bulky box springs, giving your bedroom a clean, minimalist look. Ideal for creating a lower bed height for easier access or adding extra visual space to your room.
- Quiet & Noiseless Construction: Tired of squeaky springs? Our sturdy, well-built bunkie board eliminates annoying creaks and noises, ensuring a peaceful, undisturbed sleep environment. Enjoy quiet comfort every single night.
- Heavy-Duty Support for Lasting Comfort: this bunkie board delivers exceptional strength and durability. It evenly distributes mattress weight to prevent sagging, prolong mattress life, and provide consistent, reliable support night after night.
Size: KING(76X80)
Color: Black
Brand: YUAOCUU
Manufacturer: YUAOCUU
UPC:
Size: KING(76X80)
Color: Black
Brand Name: YUAOCUU
Manufacturer: YUAOCUU
UPC: 627179043562
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Jul 10
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Love it. Feels like I have a new mattress!!
Reviewed in the United States on June 12, 2026 by Rainforest2
I’m using this on a Twin XL bed frame, and even though it’s not an exact match (because the board I got is just a twin size), it still works great for what I needed. It was easy to set up and does its job without any issues. I wanted something with a little more support for the tempur-pedic mattress that was going on this frame. It comes already pre-assembled so I literally just took it out of the box and put it on the bed frame. The black color blends in with the frame as well when the mattress is on. The only downside I’ve noticed is that the material is a little slippery, so it can shift around more than I’d like. It doesn’t seem to shift at night when being slept on though, just during placement. Other than that, it’s a solid product and I’m happy with this item.
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Reviewed in the United States on June 7, 2026 Reviewed in the United States on June 7, 2026 by Eva J.
I got this YUAOCUU Twin Size Bunkie Board 38x74.5 inch – Heavy-Duty because I have a really nice latex foam mattress and my bed frame just has slats, and I want to keep my mattress nice for a long time, and I didn't want the slats digging into the mattress because of the gaps inbetween the slats. I wanted to get a flat surface to sit on top of the slats so the mattress has continuous support without any gaps in it and this bunkie board provided exactly that. It fit the twin bed perfectly and it also keeps the mattress from shifting because of the nonslip surface, so that was a nice bonus. I think it's a well made product and it's priced competitively to other similar products. At the time of my order, it was priced at $65.99. I'm happy with it and I do recommend it.
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Reviewed in the United States on May 31, 2026 by Jennifer
This Twin Size Bunkie Board (38" x 74.5") is an excellent solution for adding extra support to a mattress without increasing bed height significantly. It provides a firm, stable foundation that helps prevent sagging and improves overall mattress performance. The board feels sturdy and heavy-duty, making it suitable for platform beds, bunk beds, box springs, and slatted bed frames. The added support can help extend the life of your mattress and create a more comfortable sleeping surface. The moisture-resistant construction is a nice feature, helping protect against humidity and everyday wear. Installation is simple—just place it under the mattress for instant support. It’s especially helpful for mattresses that need additional reinforcement or for bed frames with wider slat spacing. Overall, this bunkie board is durable, supportive, and easy to use, making it a great investment for improving mattress stability and comfort.
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Reviewed in the United States on May 29, 2026 by MAMI
I didn't even know this was a thing or I'd have gotten one long ago. I'm happy that my teenage daughter's mattress isn't sagging between her bed slats. She's happy that it's not creaking with every move, and she says it feels sturdier and more supportive. When I looked into them, this one seemed to be at a reasonable price point. It was super simple to put on and fits perfectly. I'm just not sure which side goes up. Each side has a different texture. The one with the logo is smooth and a bit slick, and the other side has those little rubber grippy bumps. A case could be made for having the grippy side against the frame or the mattress. You don't want the board slipping around on the frame, but you don't want the mattress slipping around on the board either. Maybe there should be grippy bumps on both sides. The instructions don't really help much. It just describes using 2 boards even though it was one piece. I'd guess it would go logo up, but I'm not sure. It's a minor thing, but it does bug me.
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Reviewed in the United States on June 2, 2026 Reviewed in the United States on June 2, 2026 by Jen-Jen
We got my nephew a new foam mattress for his twin platform bed, but the existing slats were about 4 to 5 inches apart. The foam started sagging right through the gaps. Instead of buying a completely new platform frame, we tried this bunkie board as a solution. It sits perfectly on top of the existing slats and creates a completely smooth, solid base. The mattress is fully supported now with no sagging at all. Pros: Solid Support: Creates a sturdy, even surface that is perfect for foam mattresses. Cost-Effective: Much cheaper and easier than replacing the entire bed frame. Simple Setup: Super easy to use—you just lay it directly over the current slats. Cons: None: It completely solved our issue with zero hassle. Highly recommend if you need to upgrade the support on a slatted bed without spending a fortune.
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Reviewed in the United States on May 25, 2026 by DW
This bunkie board was exactly what I needed. I recently purchased a twin bed frame that required additional mattress support, and this fit perfectly without any adjustments or hassle. The board feels sturdy and well made, and it sits securely in place once installed. It provides a nice, even foundation for the mattress and helped complete the bed setup quickly. I also appreciate that it is designed to resist moisture, which adds some extra peace of mind for long term use. Overall, it fit my twin bed frame very well and performed exactly as expected. If you need additional mattress support, this is a solid option that gets the job done.
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Reviewed in the United States on June 3, 2026 by Felicia Bowdish
This support board did exactly what I was hoping it would do. We had a mattress that needed a little extra support underneath, and this helped create a more solid surface without having to replace the entire bed frame. The board itself feels sturdy and lays flat once in place. I also like that it helps cover wider gaps that can sometimes be found between slats, which can help a mattress feel more evenly supported. Once positioned, it is largely out of sight and just does its job. For anyone dealing with a mattress that needs a little extra support or a bed frame with wider spacing underneath, this can be a simple solution.
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Reviewed in the United States on May 31, 2026 by Kae H