Adaptive Comfort • Breathable Airflow • Skin-Safe Core
The filling that shapes your pillow or bolster — designed to stay cool, responsive, and supportive while allowing air to circulate freely throughout the night.
Pure Memory Foam Cubes | Cooling Gel Infused | Breathable & Non-Clumping | Hypoallergenic & Certified Safe
AoYuki Flex Cube Memory Foam is made from 100% pure shredded memory foam for customizable support and cooling comfort. Suitable for DakiFlex, KumoFlex, or other brand pillows and bolsters. Breathable, durable, and hypoallergenic.
Each bag of AoYuki Flex Cube Memory Foam is filled with premium, 100% pure shredded memory foam. This design lets you adjust the fill level of your pillows or bolsters to suit your preference. Whether you want extra loft or a softer feel, simply add or remove foam. The shredded cubes mold easily, offering excellent adaptability and ensuring your head, neck, and shoulders are always properly supported.
Unlike generic fillers that may flatten or clump, AoYuki Flex Cube Memory Foam maintains its shape. Enjoy restful sleep without constantly fluffing your pillow throughout the night. Every cube bounces back naturally, preserving structure and comfort over time.
Struggling with hot, restless nights? AoYuki Flex Cube Memory Foam was designed to promote airflow and cooling comfort. Its open-cell structure helps air circulate, preventing heat buildup inside your pillow or bolster. This means your sleep surface stays fresh, even in humid conditions or warm weather.
The cooling properties of the memory foam allow your body to relax into a comfortable temperature zone. This dedication to cool and breathable sleep makes AoYuki Flex Cube Memory Foam a smart solution for both children and adults who experience night sweats or easily get overheated while sleeping.
Whether you use DakiFlex, KumoFlex, or another popular pillow or bolster brand, AoYuki Flex Cube Memory Foam works seamlessly. The flexible cubes ensure easy redistribution inside any pillowcase or bolster shell. It is the perfect refill solution for extending the lifespan of your favorite sleep essentials.
Switch out lumpy or compressed filler materials for pure, supportive memory foam cubes. Refresh your old pillows and bolsters instantly without the need for a full replacement. This versatile refill is suitable for a wide range of cushion types, making it an essential bedding upgrade for any household.
Breathability is a key feature of AoYuki Flex Cube Memory Foam. The cubes do not trap moisture, helping your sleep environment remain hygienic and fresh. Durability is another highlight—the foam is engineered to resist crumbling or breaking down with regular use.
Hypoallergenic qualities make this product safe for sensitive sleepers, children, or individuals with allergies. The material is free from harmful chemicals, toxins, or unnecessary additives. Rest with confidence knowing you have bedding that prioritizes clean, healthy sleep for everyone in your home.
AoYuki Flex Cube Memory Foam is simple to use. Refilling your pillow or bolster is easy—open the zipper, add or remove foam until you find the perfect height, and close it up. Adjust as needed whenever your comfort preferences change.
Maintenance is hassle-free. The foam should not be washed in water. Instead, spot clean only when necessary and air out occasionally to keep it fresh. Regular fluffing prolongs loft and bounciness, maintaining comfort through years of use.
No matter your sleeping position or age, AoYuki Flex Cube Memory Foam brings personalized comfort to everyone in the family.
Upgrade your bedding today with AoYuki Flex Cube Memory Foam and enjoy a new level of personalized sleep comfort!
Made for people who want real support — but keep waking up sore, sweaty, or restless.
Mixed shredded foam shifts and clumps over time, creating pressure points instead of support.
Cheap foam and polyester fillers trap heat — especially in humid nights.
Fixed-height pillows force your neck into awkward positions — too high or too flat.
Low-quality foam breaks down within months, leaving you back where you started.
Because better comfort isn’t about the pillow brand — it’s about what’s inside.
AoYuki Flex Cubes stay uniform and evenly distributed, preventing clumps and pressure points — unlike mixed shredded foam that shifts and compresses unevenly over time.
Gel-infused memory foam cubes allow air to flow between each cube, helping heat escape instead of building up — ideal for Singapore’s warm and humid climate.
Made from 100% certified memory foam cubes, with no polyester, cotton, or scrap foam. This ensures consistent support, better durability, and skin-safe long-term use.
Low-grade mixed foam breaks down quickly. AoYuki Flex Cubes are engineered to rebound and hold structure for years, even with regular adjustment and use.
Designed to pair perfectly with KumoFlex Adjustable Pillow
Upgrade your KumoFlex with AoYuki Flex Cube Memory Foam — the same premium filling used inside our adjustable pillows and bolsters.
Whether you want more loft, firmer support, or a fresh refill, AoYuki lets you fine-tune your pillow exactly the way your body needs.
KumoFlex is designed to let you add / remove AoYuki Flex Cubes to find your ideal height and firmness — so your neck stays aligned, your head feels supported, and your pillow stays breathable all night.
Long-term value: Refresh your pillow anytime by topping up cubes instead of replacing the whole pillow.
💡 Packed in protective packaging for hygiene and freshness. Pillow expands naturally after unpacking — no complicated setup required.
Fine-tune your KumoFlex comfort — add loft, firmness, or refresh your pillow anytime.
Engineered to stay even and supportive — no more lumpy or sagging shredded foam.
Adaptive Support That Never Clumps or Sinks
AoYuki Flex Cube Memory Foam moves with you while staying evenly distributed, eliminating the common problems of mixed shredded foam like clumping, pressure points, and mid-night sinking.
Every cube adapts independently to your head, neck, and shoulders for stable support from dusk till dawn.
Designed for Singapore’s warm, humid weather.
Cooling Gel-Infused Cubes for Sweat-Free Nights
Each cube is gel-infused and naturally creates airflow channels that let heat escape quickly.
The result? A pillow that feels fresh, breathable, and comfortable — even for hot sleepers who wake up sweaty using standard shredded foam.
Just premium foam, no polyester scraps or hidden stuffing.
100% Pure Memory Foam — No Fillers, No Shortcuts
Unlike cheap shredded pillows that mix leftover foam, polyester fillers, or fabric scraps, AoYuki uses only clean, high-density memory foam cubes.
This means better durability, safer sleep, and support that stays consistent for years — without flattening, irritating skin, or releasing odors.
See how AoYuki Flex Cube compares in material quality, cooling, support, and long-term safety.
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AoYuKi Collection
Flex Cube Memory Foam (Refill Foam)
|
Mixed Shredded Foam
|
Basic Poly Fill / Fibre Pillow
|
|
|---|---|---|---|
| Material Quality | 100% pure, high-density memory foam cubes | Off-cut foam mixed with fillers & scraps | Hollow polyester fibre |
| Adjustable Loft | ✅ Fully adjustable — add or remove cubes anytime | ⚠️ Hard to control, becomes uneven | ❌ Fixed loft, not adjustable |
| Breathability & Cooling | Gel-infused cubes with airflow gaps between each piece | Dense clumps trap heat | Fabric warms quickly, poor airflow |
| Support & Alignment | Adaptive, even support that contours naturally | Uneven pressure — firm and soft spots | Minimal support, collapses easily |
| Firmness Control | Customisable from soft to firm | Inconsistent when adjusted | No firmness control |
| Skin & Health Safety | OEKO-TEX®, CertiPUR-US®, GRS certified | Usually uncertified | Rarely certified |
| Odour / VOC Level | Low-VOC, minimal new-foam smell | Chemical smell common | May trap odours over time |
| Durability Over Time | High — resists clumping and flattening for years | Clumps and gaps form quickly | Flattens within months |
| Comfort Experience | Cool, adaptive, pressure-relieving | Initially soft, quickly uncomfortable | Soft at first, loses shape fast |
| Eco-Friendliness | Uses certified, responsibly sourced materials | Mixed, often unknown sources | Synthetic, non-eco |
Personalise your comfort in minutes — no waiting, no guesswork.
Adjust. Test. Sleep Better.
How to Use AoYuki Flex Cubes
1️⃣ Open the zipper of your adjustable pillow or bolster
2️⃣ Add cubes gradually until you reach your ideal height
3️⃣ Shake & spread evenly
4️⃣ Sleep, test, and fine-tune over a few nights
💡 No expansion time required. Ready to use immediately.
➡️ “Sleep, test” subtly encourages use instead of overthinking.
Quick details to help you understand what’s inside and how it’s used.
💡 AoYuki Flex is a refill material, not a finished pillow.
💡 Add or remove cubes to control height, firmness, and feel.
Contact our customer service team to initiate a return. We'll provide you with a prepaid shipping label.
💡 Simply adjust the amount of foam to suit body size, sleep position, or comfort preference.
You may notice some cubes appear light yellow or beige instead of blue.
This is normal and expected.
Why it happens:
✔ Same material
✔ Same density
✔ Same cooling & support performance
💡 Colour variation is a sign of pure memory foam, not fillers or mixed scraps.
Everything that touches your skin — explained simply. Designed for comfort. Tested for safety. Built to last.
Low-VOC foam, free from harmful chemicals and heavy metals.
Tested safe for direct skin contact.
Made with responsibly sourced, recycled materials.
Everything that touches your skin — explained simply. Designed for comfort. Tested for safety. Built to last.
Premium organic cotton blend with cooling technology.
Hypoallergenic memory foam with bamboo fibers.
Machine wash cold on gentle cycle.
Tumble dry low or air dry recommended.
Store in a cool, dry place when not in use.
OEKO-TEX Standard 100 certified, GOTS organic certified, and meets CertiPUR-US standards for foam safety.
Get your pillow or bolster feeling perfect right from the first night. AoYuki Flex Cubes make setup fast, intuitive, and fully adjustable.
Unbox & Adjust in Minutes
✔ Open the rope bag or packaging.
✔ Pour the AoYuki Flex Cubes into your pillow or bolster.
✔ Shake gently to distribute the cubes evenly.
✔ Add more cubes for higher loft or remove for softer feel.
✔ Store extra cubes in the included rope bag for later adjustments.
For detail-lovers: everything inside your AoYuki Flex Cube pillow.
Foam tested for low VOCs and free from harmful chemicals like mercury, lead, and formaldehyde.
Fabric tested and certified safe for direct skin contact.
Crafted with recycled materials sourced through sustainable, ethical processes.
For detail-lovers: everything inside your AoYuki Flex Cube pillow.
AoYuki Flex Cube is crafted as a pure, adjustable refill foam — designed to improve comfort, cooling, and long-term support inside adjustable pillows and bolsters.
AoYuki Flex Cube uses internationally recognised safety standards:
✔ Hypoallergenic
✔ Dust-mite resistant
✔ Safe for kids, adults, seniors, and sensitive skin users
Yes. AoYuki Flex Cube is designed specifically for:
Cooling-focused. The cube structure naturally creates airflow channels, while gel-infused memory foam helps heat escape — ideal for Singapore’s warm nights and air-conditioned rooms.
Yes. AoYuki Flex Cubes rebound individually and resist flattening far better than mixed shredded foam or polyester-filled alternatives.
Many users report:
Some cubes may appear slightly yellow or beige — this is normal for high-quality memory foam and does not affect performance, safety, or lifespan. It occurs naturally due to foam formulation and oxidation over time.
✨ With proper care, AoYuki Flex Cube maintains structure, support, and airflow for years — not months.
What exactly is AoYuki Flex Cube?
Is this the same foam used in KumoFlex and DakiFlex?
How much foam do I get per pack?
Is 500g enough?
How do I know how much foam to add?
Is AoYuki Flex Cube suitable for side sleepers?
What about back or stomach sleepers?
Can I mix AoYuki Flex Cube with my existing pillow filling?
Is AoYuki Flex Cube safe for kids and babies?
Why are some cubes light yellow or beige instead of blue?
Does it contain polyester fibres or recycled scraps?
Will the foam clump over time?
Does it flatten like cheap shredded foam?
Is AoYuki Flex Cube cooling?
Will it help with neck or back discomfort?
Can I wash the memory foam cubes?
How do I keep the foam fresh?
Does the foam have a smell?
How is AoYuki Flex Cube packed?
Do I need to wait for expansion?
How long does delivery take in Singapore?
Do you ship internationally?
What if I receive the wrong or damaged item?
Can I return or exchange AoYuki Flex Cube?
Is there a warranty?
Can I return or exchange AoYuki Flex Cube?
