AoYuki Flex Cube – Refill Foam Insert
AoYuki Flex Cube – Refill Foam Insert
AoYuki Flex Cube – Refill Foam Insert
AoYuki Flex Cube – Refill Foam Insert
AoYuki Flex Cube – Refill Foam Insert
AoYuki Flex Cube – Refill Foam Insert
AoYuki Flex Cube – Refill Foam Insert
AoYuki Flex Cube – Refill Foam Insert
AoYuki Flex Cube – Refill Foam Insert
AoYuki Flex Cube – Refill Foam Insert
AoYuki Flex Cube – Refill Foam Insert

AoYuki Flex Cube – Refill Foam Insert

Adaptive Loft Comfort · Cooling Foam Refill · Everyday Rest

A thoughtfully engineered refill made with AoYuKi Flex Cube Memory Foam, certified safe and designed to restore neck alignment, cooling comfort, and personalised support in your favourite pillows and bolsters — night after night.

Each cube is cut for clean, even support, allowing airflow through the gaps between cubes while maintaining balanced lift. The result is a refill that keeps pillows feeling cooler, lighter, and more naturally aligned — never lumpy, never stuffy.

Cooling Memory Foam Pillow Refill | AoYuKi Flex Cube | 100% Pure Gel-Infused Memory Foam | CertiPUR-US® · OEKO-TEX® · GRS Certified | For Pillows, Bolsters & DIY Support

Sale price$22.90 SGD Regular price$47.90 SGD
Save $25.00

Is This What Your Nights Feel Like?

You’re not “just a bad sleeper”. Most nights go wrong because the pillow filling is wrong — too flat, too hot, or not safe enough. AoYuki Flex Cube Memory Foam is designed to fix these problems from the inside.

Neck or Shoulder Stiffness

Waking up with tightness, aches, or a heavy head? Flat or lumpy filling pushes your neck out of alignment and makes muscles work all night instead of resting.

Hot or Sweaty Sleep

Flipping to the “cool side” all night? Cheap mixed foam and polyester fillers trap heat, leaving your head warm, damp, and restless.

One-Height Pillows Don’t Work

You change position at night — but your pillow doesn’t. Fixed-height pillows are either too high, too low, or go flat in weeks, so you never feel fully supported.

Skin Safety Matters (Kids Included)

You want materials that feel gentle, breathable, and certified safe for little ones — not mystery foam that smells strong or sheds dust.

Trusted comfort materials designed for everyday sleep, cooling support, and long-lasting use.

What You’ll Notice After Switching to AoYuKi Flex

What You’ll Notice After Switching to AoYuKi Flex

  • Your pillow feels even and steady – no more bumpy, saggy spots.
  • You stop waking up to “fix” your pillow – cubes stay supportive all night.
  • Your neck and shoulders feel less tight – alignment feels natural, not forced.
  • Sleep feels cooler and fresher – airflow between cubes instead of trapped heat.
  • You wake up lighter, not stiff or annoyed – more “ready for the day”, less “recovering from sleep”.

Thoughtfully Chosen Materials

100% High-Density Memory Foam Cubes

Moves with your body without collapsing into lumps

Cooling Gel Infused Structure

Helps reduce heat retention so sleep feels less sticky

Cube Shape = Natural Air Pockets

Improves airflow and reduces trapped humidity in warm rooms

Breathable Rope Storage Bag

Store extra foam neatly for future adjustments (no mess)

Trusted comfort materials designed for everyday sleep, cooling support, and long-lasting use.

Designed to Stay Supportive — Not Just Day 1

AoYuki Flex is engineered to keep your pillow cool, even and supportive — not flat and lumpy after a few weeks.

Clump-Resistant Fill

Cubes stay separated better than shredded scraps, so support feels more even across the pillow.

Adjustable Loft Control

Add or remove cubes anytime to keep the same comfort as seasons, body or sleep style change.

Cooling Airflow Structure

Air gaps between cubes help reduce heat build-up in humid bedrooms.

Trusted comfort materials designed for everyday sleep, cooling support, and long-lasting use.

Cool, breathable comfort for warm, humid nights.

Designed for Singapore Climate

  • AoYuki Flex cubes stay airy, not stuffy, even in fan rooms or air-con off nights.
  • Cube gaps let heat and humidity escape instead of trapping it around your neck.
  • Wake up feeling less “sticky” and more refreshed, even in our weather.

Certified foam you can trust close to skin.

Thoughtfully Sourced & Tested

  • 100% pure cooling gel memory foam cubes — no polyester scraps, no mystery fillers.
  • Independently tested to CertiPUR-US®, OEKO-TEX® and GRS standards for safety and quality.
  • Low-odor, hypoallergenic choice for sensitive skin and family use.

One refill that supports many daily moments.

Made for Everyday Wellbeing

  • Use AoYuki Flex to refresh old pillows, fill bolsters, or upgrade adjustable designs.
  • Supports better sleep, pregnancy rest, sofa lounging and recovery nights.
  • Instead of buying new pillows, refill and fine-tune what your family already loves.

Sleep Should Be Safe.

Materials tested for skin contact — every night.

CertiPUR-US®

Foam made without harmful chemicals. Low VOC emissions for indoor air quality.

OEKO-TEX®

Fabric tested against harmful substances. Safe for prolonged skin contact.

GRS Certified

Responsible sourcing of recycled materials. Better for you — and better for the environment.

Trusted comfort materials designed for everyday sleep, cooling support, and long-lasting use.

Specifications & Compatibility

Everything you need to know — and how to use it with your pillows & bolsters.

Pack Size Filling & Structure Certifications Works With Packaging
500g refill pack (approx. 1× full refill or multiple top-ups) 100% pure AoYuKi Flex Cube Memory Foam (cooling gel-infused). Open-cell, cube shape design for airflow & adjustable loft CertiPUR-US® • OEKO-TEX® • GRS. Low-odor, made without harmful chemicals DakiFlex Adjustable Bolster | KumoFlex Adjustable Pillow | Other zip-open pillows & bolsters | DIY cushions / backrests / leg support pillows Breathable rope bag

Care, Safety & Quality

Loved By Families Across Singapore

From kids’ pillows to hot-sleeper bolsters, AoYuki Flex Cube is used to refill, rescue and upgrade tired cushions at home.

For Little Sleepers

Gentle, hypoallergenic foam cubes that parents trust for kids’ pillows. Soft enough for cuddling, supportive enough for healthy neck alignment – without mystery mixed-fill.

Everyday Comfort, Refilled

Bring flat pillows, bolsters and cushions back to life. AoYuki Flex Cubes adapt to your preferred height and firmness, so favourite pillows feel new again instead of being thrown away.

Soft Yet Properly Supportive

Cloud-soft, but not floppy. Precision-cut memory foam cubes spread evenly instead of clumping, so cushions stay plush enough to hug and firm enough to hold shape night after night.

What Our Shopee Buyers Say

“I refilled my kid’s pillow with AoYuki foam. It’s soft, cooling, and he sleeps much better now.”
— Shopee Buyer @lyn**
“I’m a hot sleeper and usually wake up sweaty. This foam really helps with airflow even without air-con.”
— Shopee Buyer @kel**
“Didn’t expect such good quality. No chemical smell and doesn’t clump like other shredded foam.”
 — Shopee Buyer @jason**

Frequently Asked Questions

Everything you need to know about AoYuKi Flex Cube Memory Foam — from refilling and adjusting your pillows & bolsters to care, delivery, and exchanges.

If you need personalised guidance on how much foam to get or how to adjust your pillow, we’re always here to help. 📧 support@shizukuscents.com 📱 WhatsApp: +65 8946 1995 / +65 8479 5232
Operating Hours
Mon–Sun, 10:30am–4:30pm
Average Reply Time
Usually within 2–4 hours

Product & Usage

What is AoYuKi Flex Cube Memory Foam designed for?

AoYuKi Flex Cube Memory Foam is a 500g refill pack of pure cooling gel–infused memory foam cubes. It’s made to refill or adjust zippered pillows and bolsters such as DakiFlex, KumoFlex, and other adjustable pillows, as well as DIY cushions and support bolsters.

Which pillows or bolsters can I use this with?

You can use AoYuKi Flex cubes with: - DakiFlex Adjustable Bolster - KumoFlex Adjustable Pillow - Most zippered pillows / bolsters with a removable inner lining As long as the pillow has a zip opening with loose fill inside, you can replace the old filling with AoYuKi Flex cubes.

How much foam do I need for one pillow or bolster?

One 500g pack is usually enough to: - Fully refill one standard pillow, or - Top up / adjust one larger pillow or bolster, depending on how high or firm you like it. If you prefer very high loft or are refilling multiple items, you may want 2 packs.

How do I adjust the height or firmness with AoYuKi Flex?

1.Open the pillow or bolster zipper. 2. Add cubes to increase height and firmness. 3. Remove cubes to make it softer or lower. 4. Zip up, fluff, and lie down to test. 5. Repeat in small adjustments until it feels just right. You can always store extra cubes in the rope bag for future adjustments.

Can I use AoYuKi Flex for other purposes besides pillows?

Yes. Many customers use AoYuKi Flex cubes to: - Refill backrest cushions and sofa pillows - Create leg elevation or knee support cushions - Add extra support to pregnancy or maternity pillows - Make DIY seat pads or travel cushions As long as the cover is zippered and meant for loose fill, AoYuKi cubes will usually work.

Materials & Craft

What is inside the AoYuKi Flex refill pack?

Each 500g bag contains 100% pure, high-density cooling gel–infused memory foam cubes. There are no polyester fibres, no scrap foam mix, and no added fillers.

How is AoYuKi Flex different from mixed shredded foam?

Mixed shredded foam often uses off-cuts or blended materials that clump easily and lose support. AoYuKi Flex cubes are: - Precision-cut for more even support - Made from one consistent memory foam formula - Designed to resist clumping and maintain shape longer This gives a more stable, even feel compared to “mystery mixed” fillings.

Is the foam certified safe?

Yes, AoYuKi Flex Cube Memory Foam is: - CertiPUR-US® certified foam - Produced with OEKO-TEX®–tested components - Uses GRS-certified recycled content where applicable It is made without harmful heavy metals, formaldehyde, or certain flame retardants.

What is the texture and firmness like?

The cubes feel medium-firm but adaptable. They compress gently around the head, neck or body, then slowly spring back. This creates a supported but not “hard” feel, and helps reduce flat spots.

Safety & Home Use

Is AoYuKi Flex safe for children?

The foam material itself is safety-tested and hypoallergenic, and many parents use it to refill kids’ pillows. However: - Keep loose cubes away from very young children (choking risk if played with unsupervised). - Always keep cubes inside a secure zip cover. For babies and infants, follow your paediatrician’s safe-sleep guidelines.

Can I use AoYuKi Flex during pregnancy?

Yes. Many customers use AoYuKi Flex to adjust pregnancy pillows, leg wedges or side-sleeping bolsters. Because the loft is adjustable, you can fine-tune support as your body changes. If you have specific medical conditions, please check with your doctor first.

Does the foam have a strong smell when new?

AoYuKi Flex is made with low-odour foam. A light new-foam scent is normal and should fade quickly. If you are sensitive, you can: 1. Open the rope bag 2. Spread the cubes in a clean, shaded area with good airflow 3. Air them for 24–48 hours before use

Who should consider checking with a doctor before using this?

If you have serious neck, spine, or respiratory conditions, recent surgery, or specific medical advice about your sleep posture, please consult your healthcare professional before making big changes to your sleep setup.

Care & Maintenance

Can I wash the AoYuKi Flex foam cubes?

No. The cubes should not be washed, soaked, or machine-washed. Water can damage the foam and shorten its lifespan. Instead: 1. Keep cubes inside a washable pillow / bolster cover 2. Spot clean the cover and inner lining as per their care labels

How do I keep the foam fresh?

- Air pillows or bolsters in shaded, well-ventilated areas occasionally - Fluff and shake to redistribute cubes - Avoid exposing foam to direct sunlight, high heat, or open flames Used in normal bedroom conditions, the foam should stay fresh and supportive for years.

How often should I readjust or fluff the cubes?

Foam may settle slightly over time. We recommend: Light fluffing when making the bed A quick re-adjustment every few months or whenever your comfort needs change You can always add back cubes from the rope bag if you prefer higher loft again.

How should I store extra cubes?

Use the breathable rope storage bag included: Keep the bag tightly closed and stored in a cool, dry place Avoid compressing the bag under heavy items Do not store in damp areas or under direct sun

Delivery & Packaging

How is AoYuKi Flex packaged?

Each order comes in: 1 × 500g AoYuKi Flex Cube Memory Foam refill, packed in a breathable rope bag Protective outer packaging to keep the foam clean during delivery The rope bag can be reused to store any extra cubes.

How long does delivery take?

Delivery time depends on your location and chosen shipping method. For most Singapore addresses, orders usually arrive within 2–5 working days after dispatch. You can see the exact timeframe at checkout.

 Do you ship internationally?

Please check our shipping policy on the website. For countries we support, shipping fees and estimated delivery times will be shown at checkout. If your country is not listed, you can contact us to check options.

Exchanges & Returns

Can I return or exchange AoYuKi Flex after opening the bag?

Because AoYuKi Flex is a bedding and hygiene-sensitive product, we’re unable to accept returns or exchanges once the rope bag has been opened, unless the item is defective. If you have any issues, please contact us and we’ll do our best to help.

What if my item arrives damaged or with a defect?

If your refill pack arrives damaged, leaking foam, or with a clear defect, please: Take clear photos of the product and packaging Contact us within 7 days of receiving your order Our team will assist with a replacement or suitable solution according to our store policy.

Can I cancel my order after it’s placed?

If your order has not yet been packed or shipped, we may be able to cancel it. Please contact us as soon as possible with your order number. Once the order is processed or shipped, standard return/ exchange terms apply.

Need more help?

If you’re unsure how many packs you need, how to adjust your pillow, or whether AoYuKi Flex is suitable for your setup, you can reach us via email or WhatsApp on our Contact page. We’re happy to help you customise your comfort.

A small refill that changes how your whole bed feels.

AoYuKi FLEX CUBE

Restore the comfort, support, and coolness your pillow has been missing — with 100% pure memory foam cubes designed to adapt to you.
Customers rate us 5.0/5 based on 9 reviews.