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🛏️ Upgrade your sleep game—because your pillow deserves a glow-up!
The Simba Extra Nanocubes Refill Bag (100g) offers a lightweight, CertiPUR certified foam filling designed to refresh and customize your Simba Hybrid Pillow’s loft and firmness. Perfect for those seeking tailored support and extended pillow life without the cost of replacement, these adaptive foam cubes move with you for responsive comfort and come in a resealable bag for easy use and storage.


| ASIN | B081TKS51Z |
| Best Sellers Rank | 20,758 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 2,955 in Bedding & Linens |
| Brand | Simba |
| Colour | Blue |
| Customer Reviews | 4.3 4.3 out of 5 stars (542) |
| Date First Available | 21 Nov. 2019 |
| Item Weight | 100 g |
| Material | CertiPUR verified foam |
| Package Dimensions | 32.9 x 25.4 x 15.1 cm; 100 g |
T**S
Huge difference
Had my Simba pillow 2.5 years, started to get neck ache again like before I purchased. Pillow was getting flat. Purchased 2 bags of these and made a huge difference, pillow felt like new. Yes £16 for 2 bags of foam seems pricey but Cheaper than £100 for a new pillow.
G**S
Helps to top up pillow
Useful to top Simba pillow
C**.
Perfect for adding more support for side-sleepers
I have added a photo of the bag you get as nobody has posted an image yet and it's hard to know from the product description how many nanocubes you actually get. Basically they send you the bag they include with the hybrid pillow filled with nanocubes, so about 6 handfuls of Nanocubes. I thought I was going to have to return the pillow or complain to them if after spending 8 pounds on these they still didn't add sufficient support for a side-sleeper despite the pillow costing 100 pounds. But I'm happy to confirm there is a substantial difference in the firmness of the pillow after adding two extra bags. I originally felt my head sinking into the middle of the pillow as the pillow went flat, but with two extra bags of Nanocubes, there is significantly better support and I no longer find myself sinking. It makes the pillow feel more like a memory foam pillow due to the extra firmness and less like a down pillow that feels soft but lacks any neck support. It might be best to buy one bag, as it's free shipping, and see how that goes as I did find one bag did make a big difference, however, I ultimately had to order a second bag and found that two bags offered me the most ideal support. I knocked a star as I believe that, considering the premium price of the pillow, Simba should be filling up the empty bag that comes with the Hybrid Pillow instead of giving us an empty bag because the pillow is advertised for side-sleeps but just isn't suited to a side-sleeper without paying an extra 8 pounds for what is effectively an identical bag they include with the pillow but filled with Nanocubes. Fortunately it's unlikely that most people will need any more than one bag unless you want a very firm pillow that would eliminate its softness. Contrary to what some reviewers said, the Nanocubes are exactly the same size as the Nanocubes that came with the pillow. The reviewers who complained may have a much older pillow with different sized cubes that they no longer use with the more recently produced hybrid pillows as my pillow was purchased on 1st January 2023 and the cubes appear to be identically sized.
R**E
Blu Cubes...
I got my Simba pillow over a year ago and have been getting an achy neck and shoulders lately, im thinking my pillow was a bit too soft,i was really thinking of getting a new pillow but saw the Simba Blue Cubes got one bag two days ago put three big hand fulls into my pillow slept on it,three was too much so tookout a hand full,two was good for me it doesnt seem like a lot but its perked up my pillow and is more comfortable,will keep my spare cubes incase i need to replace some in the future...
A**0
Highly recommended - saves buying a whole new pillow.
Excellent purchase. My 8 year old Simba pillow had lost a lot of its life and I was considering the purchase of another one, but at north of a hundred pounds for a new one I kept putting it off. After a few months of not sleeping as well as normal Id noticed these instead so thought I’d give them a go. I ordered 2 bags for £20, so I emptied my old beeds out and put the two bags in first, id say this filled it 3/4 of the way and then topped it up with some of the old ones. It’s made a huge difference and feels as good as new now. So glad I didn’t just buy a full pillow. I did notice a few reviews saying how the beads are different and that’s true depending on when you bought your pillow. They are about half the size of mine but my wife also has the same pillow, but that’s maybe only 2 years old and the beads are identical to hers. I’ve not noticed a difference and for £20 it’s like I have a whole new pillow, plus still have a bag of my old beads to top up as required.
L**E
Not The Same
Ordered the Simba Hybrid Pillow direct from Simba & decided it needs a few more cubes. Wish I’d listened to the not so good reviews. These are nothing like the original cubes, not as big, dense or the same uniform sizes. I would go so far as to say they are probably fake, the bag they came in did not have any Simba markings. Very disappointed & as others say, you pay so much for the pillow you should be given a certain amount of extra cubs for free.
C**E
Revives pillow - no more neck pain
Good size bag for the price. These are a must for Simba Nano pillow. Revives it and no more neck pain!
S**9
Expensive for what it is.
Expensive for what it is, but if you need to top up your SIMBA Hybrid it’s a must. I only ended up using about 1/3 of the bag.
L**O
Infos
Franchement je m’attendais à qu’il y en est plus dommage en plus 10€! Pas top déçu
P**X
Très cher pour ce que c'est...
2 sacs font très peu et ils sont bien plus petits que ceux d'origine que j'avais dans mon coussin. Très déçu surtout que c'est hors de prix pour quelques morceaux de mousse minuscules.
Trustpilot
3 days ago
1 month ago