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Best Weighted Blanket Fillings: Popular Filling Materials and How to Choose

Weavve's Weighted Blanket

Featuring Weavve’s Weighted Blanket

Weighted blankets, or gravity blankets, have become increasingly popular due to their therapeutic benefits. They are said to mimic Deep Touch Pressure Stimulation, which relaxes the nervous system, produces a calming effect, and lowers the heart rate. 

This simulation helps sleepers fall asleep faster and improve sleep quality. This is especially important for people with autism and those dealing with chronic pain, stress, and anxiety. Additionally, it eases the symptoms of anxiety disorder, attention deficit hyperactivity disorder (ADHD), and autism spectrum disorders.

children wrapped in a weighted blanket

Image by lea bonzer from Pexels

Because of the many benefits of weighted blankets, it’s no wonder why more and more people are getting interested in trying them. If you are someone who wants to experience the benefits of weighted blankets for yourself, then one important thing you should know is that the pressure exerted depends largely on the filling materials stuffed inside the blankets. 

Depending on the material you choose to use in your gravity blanket, the outcome of the pressure you feel will vary accordingly, so it is imperative that you find what is suitable for you personally.

What Are Weighted Blanket Filling Materials?

Weavve's Weighted Blanket

Featuring Weavve’s Weighted Blanket

Filling materials are weights used to fill weighted blankets. They are stitched inside square pockets and designed to conform to the curves of the body. Since they are heavy enough, they stimulate Deep Touch Pressure that offers a sense of comfort and security.

What Goes Inside Weighted Blankets?

baby under blanket

Image by Pixabay from Pexels

Knowing the different weighted blanket filling materials is important for optimal comfort and safety. In addition, the blanket will be in direct contact with the skin, so choosing safe, non-toxic materials is crucial.

To choose the right weighted blanket filler, let’s take a closer look at the most common filling materials, as well as their benefits and drawbacks:

Plastic Poly Pellets

plastic poly pellets filling

Image from plasticpellets.com

Poly pellets, also known as weighted stuffing beads, are one of the most commonly used weighted blanket fillers. They are usually made of polypropylene plastic, which is considered to be a safe level 5 plastic. This material is great because it easily follows the curve of the body once sewn into the fabric.




Not eco-friendly


Can sometimes give off an initial odour

Usually washable

Can sometimes clump, causing uneven weight distribution

Easily accessible

Its uneven texture may feel abrasive for extremely sensory-sensitive individuals



Micro Glass Beads

glass beads filling

Image from hxglassbeads.com

Micro glass beads, considered the most luxurious filling material, are tiny glass fillers that look like white sand or salt crystals. They are cool to the touch, so they are usually used in cooling weighted blankets.

This filling material makes a great alternative to poly pellets because it is more eco-friendly. These beads also have a consistent shape and smooth edges. Because of this, they are ideal for those who tend to get bothered by the texture of poly pellets.



An environmentally friendly alternative to poly pellets

More expensive than poly pellets


Cheaper glass beads may contain lead


Sometimes shift to the sides, causing uneven weight distribution

Dry cleaner-safe

More likely to leak through the stitches of the blanket

Easily accessible



Less clumpy


Nano-Ceramic Beads

nano-ceramic beads filling

Image from reade.com

Nano-ceramic beads are made using nano-particle technology, which involves mixing tiny ceramic particles within a solution and gel. 

This material is excellent for weighted blankets because it contains a high percentage of air, which means it’s lightweight. It is also durable, thanks to its outstanding strength and flexibility. Additionally, it blends better and creates a more balanced weight distribution than other filling materials.




Not as readily available as other weighted blanket fillings


May be more expensive

Extra small, which is perfect for those who are very sensitive to touch


Steel Shot Beads

steel shot beads filling

Image from tenroadsglass.com

This weighted blanket filling material promotes calm and comfort since it has a completely smooth, round surface. However, the beads are heavy, so they may be too noisy when they move about inside the blanket. 




Can be noisier than glass beads and plastic pellets

Washing machine-safe

Can feel lumpy on the body

Extremely durable

Doesn’t leak through the stitches of the blanket easily



crystal filling

Image by Dids from Pexels

Crystals are believed to hold vibrational frequencies that promote natural healing. When combined with Deep Touch Pressure, they potentially offer a more restorative sleep. For this reason, some are drawn to using them as filling materials for their homemade weighted blankets.



Ideal for people who believe in holistic healing


Not as easy to wash as other filling materials

May feel lumpy, depending on the cut and finish of the crystals



sand filling

Image by Aleksandar Pasaric from Pexels

Sand is a common weighted blanket filler that is cheap and easy to buy. Unfortunately, washing and drying a blanket stuffed with this material is challenging. 

Since it is extremely fine, this filling material can clump and cause the blanket to lose its shape after the first wash. The blanket filled with sand must also be air-dried, so drying takes longer.




Tends to clump

Easily accessible

Washing and drying are difficult

Likely to leak through the stitching


Dried foods

dried food filling

Image by Mike from Pexels

Dried foods, such as beans, rice, barley, or corn, are sometimes turned into weighted blanket filling materials. They are not common in commercially available blankets, but they are often used by those who prefer homemade ones.

This material may be cheap, but it isn’t an ideal filling material. Food eventually disintegrates and rots, so using it for your blanket might eventually mean having smelly and infested bed linen.

Additionally, cleaning a weighted blanket filled with food is a nightmare. Since food is porous, it will retain water without completely drying out. As a result, the blanket becomes moldy after the first wash.




Food might break down over time

Easily accessible

Not durable 

Can grow mold and fungus

May give off an odor 

May attract insects



rock filling

Image by Scott Webb from Pexels

Riverstones, pebbles, and gravel are commonly used as homemade weighted blanket fillers. These are small, lightweight, and similar in size to ensure even weight distribution.

Before sewing them into the lining, these rocks are completely dried out to avoid mold growth. Padding is also added for comfort.




May cut through the fabric due to sharp edges

Easily accessible

Tend to feel lumpy on the body

May feel too warm for hot sleepers

May feel uncomfortable for individuals with sensory sensitivities


What Is the Best Filling Material for a Weighted Blanket?

bedroom scenery

Image by Kristin Vogt from Pexels

Each filling material has its pros and cons. Besides knowing its advantages and disadvantages, here are other factors to consider when choosing a weighted blanket filling material:


Some fillings, like steel beads and rocks, may rustle when moved. This noise can be bothersome for people with auditory irritations. Those dealing with sensory sensitivities may also get irritated by uneven weight distribution. That said, consider your sensitivities and steer clear of filling materials that tend to cause discomfort.


Some fillers are made of plastic or organic materials. If you have sensitive skin or allergies to artificial or organic ingredients, don’t buy weighted blankets filled with poly pellets, dry foods, and sand.


Filling materials can be cheaper or more expensive, depending on their manufacturing process. Consider your budget and check options that offer the best quality for the price to get the most out of your blanket.


Clean bed linen makes for an ideal sleep environment. This is why choosing a machine-washable and dryer-friendly filling material is essential.

If you tend to sweat at night, go for beaded fillers since they’re easier to wash. Also, don’t wash blankets filled with porous materials, like sand, beans, and grains, to avoid having bed linen with decomposing fillers.


woman sleeping under blanket

Image by Ivan Oboleninov from Pexels

A weighted blanket can help you enjoy restful sleep every night. With the right filling material, it could be your ultimate cuddle buddy. 

Ultimately, the best weighted blanket filling material depends on your sleeping needs and preferences. For more information, check out our ultimate guide to weighted blankets.


Weavve's Weighted Blanket

Weavve's Weighted Blanket

Weavve’s weighted blanket consists of 100% polyester & lead-free glass bead filling, designed with smaller compartments for even weight distribution. Our weighted blanket helps you relax by simulating the feeling of being held or hugged. 

Additionally, our weighted blankets are hypoallergenic and non-toxic with a breathable fabric that is machine and dryer safe, so you can be sure to get a good night’s sleep.


Shop Weighted Blanket Singapore

Weavve's TENCEL™ Lyocell Duvet

Weavve’s TENCEL™ Lyocell Duvet

Weavve’s TENCEL™ Lyocell duvet is the first in Singapore featuring 100% pure TENCEL™ Lyocell fibres in both its exterior fabric and inner filling, providing you with great thermal regulation properties for maximum comfort and rest.

Shop TENCEL Duvet Singapore

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