My Shopping Cart
Your cart is currently empty.
Continue ShoppingAustralian Wool Bedding
Australian Wool Bedding
Warm in Winter. Cooler in Summer.
One of the most useful things you can do to make a bed more naturally comfortable is surprisingly simple:
Put a layer of wool underneath you.
Most people think of wool as something that goes on top of the bed to keep you warm.
But wool can be just as valuable underneath the sleeper.
A wool underlay or wool mattress topper creates a layer of naturally crimped wool fibres containing thousands of tiny pockets of air.
That insulating layer helps reduce rapid heat transfer between your body and the mattress while wool's natural ability to absorb and release moisture helps manage the temperature and humidity around you.
The result can seem counter-intuitive:
Warmer in winter. Cool in summer.
That is why Australian wool is one of our favourite materials for creating a naturally comfortable bed.
Living with Nature. Every day.
Why Put Wool Underneath You?
Your mattress is the biggest surface your body is in contact with while you sleep.
Yet most conversations about bedding focus almost entirely on what goes over you.
The layer underneath you matters too.
When you lie on a mattress, the weight of your body compresses the bedding beneath you. This can limit the amount of air immediately underneath your body and affect how readily heat and moisture can move away from your skin.
This can be particularly noticeable on dense foam, memory foam and latex mattresses.
Adding a thick, resilient layer of wool between you and the mattress changes that sleeping environment.
Wool's natural crimp creates millions of small air spaces throughout the layer.
These air spaces provide insulation while the wool fibre itself can absorb and release moisture vapour.
Instead of sleeping directly against a dense mattress surface, you are sleeping over a breathable natural-fibre layer.
Warm in Winter. Cooler in Summer.
It sounds contradictory.
If wool is good at keeping you warm, how can it also help you stay comfortable when the weather is warm?
The answer is that insulation works both ways.
Insulation doesn't create heat.
It slows the movement of heat.
In winter, a wool layer helps reduce heat loss from your body into the colder mattress below.
In warmer conditions, that same insulating layer can help reduce the direct build-up and transfer of heat between your body and a warm or heat-retaining mattress.
At the same time, wool can absorb up to a third of its own weight in moisture and release it as conditions change.
Together, these properties help create a more stable microclimate around the sleeper.
In winter
Wool traps pockets of air beneath your body, helping reduce heat loss and making the sleeping surface feel warmer and more comfortable.
In summer
The same breathable structure helps separate your body from the mattress while wool manages moisture vapour around the sleeping surface.
It isn't simply about making the bed warmer or cooler.
It is about making the temperature of the bed more even and comfortable.
The Missing Layer in Many Beds
A typical modern bed might consist of:
Sleeper
↓
Cotton fitted sheet
↓
Mattress protector
↓
Dense mattress
For many sleepers, particularly on foam mattresses, there is very little breathable depth underneath the body.
Now add a wool underlay:
Sleeper
↓
Cotton fitted sheet
↓
WOOL UNDERLAY
Air + wool fibre + moisture management
↓
Mattress
The wool creates a substantial natural layer between the body and the mattress.
That layer can make a surprisingly large difference to how the bed feels.
Why Mattresses Can Feel Hot Underneath You
When people say:
“My bed is too hot.”
they often assume the problem is their quilt.
Sometimes it is.
But heat can also build up underneath the sleeper.
Your body produces heat throughout the night.
If the materials underneath you allow heat and moisture to disperse easily, the sleeping environment tends to remain more comfortable.
If the mattress is dense and has limited airflow, that heat has fewer places to go.
This is one reason some people find memory foam and other foam mattresses warmer to sleep on.
Changing to a lighter quilt may help the top half of the equation.
But it doesn't necessarily address what is happening beneath you.
A breathable wool layer underneath the sleeper approaches the problem from the other direction.
READ: WHY FOAM MATTRESSES CAN SLEEP HOT
Wool Underlays and Hot Sleepers
Putting wool underneath a hot sleeper can sound like the last thing you would want to do.
But wool behaves very differently from an impermeable layer.
Wool fibres are naturally crimped rather than straight.
This creates small air spaces throughout a wool underlay or topper.
Wool can also absorb moisture vapour into the fibre and subsequently release it.
Rather than simply trapping warmth against the body, a wool underlay can help create a more breathable and moisture-responsive sleeping surface.
Research cited by Woolmark reports that wool underlays provide insulation and improved perspiration absorption compared with sleeping directly over a cotton sheet, while wool bedding has demonstrated strong moisture-buffering and thermal-regulation properties.
The important distinction is:
A wool underlay is not simply another warm blanket.
It creates a three-dimensional insulating and moisture-managing layer beneath the sleeper.
READ: BEDDING FOR HOT SLEEPERS
Wool Underlays
If temperature regulation is your main priority, a wool underlay can be one of the most useful wool products in the bedroom.
A wool underlay sits over the mattress and underneath your fitted sheet.
Its purpose is not simply softness.
The depth of wool creates a layer of:
-
trapped air
-
natural insulation
-
moisture management
-
cushioning
-
separation from the mattress surface
This can be particularly useful if your mattress:
-
feels hot
-
is made from memory foam, foam or latex
-
feels cold in winter
-
feels overly firm
-
contains predominantly synthetic materials
-
doesn't provide much ventilation beneath the sleeper
The goal is not maximum warmth.
The goal is a more stable and comfortable sleeping environment.
Wool Mattress Toppers
A wool mattress topper performs a similar role but generally places greater emphasis on cushioning and comfort.
It adds another substantial natural layer between your body and your mattress.
This can be useful if you want to:
-
soften a firm mattress
-
improve the sleeping surface of a foam mattress
-
add a more breathable layer beneath you
-
introduce more natural fibre into your bed
-
improve year-round sleeping comfort
A good wool topper doesn't change the mattress itself.
It changes the environment immediately around the sleeper.
What About Wool on Top of You?
Wool also performs extremely well above the sleeper.
An Australian wool quilt provides insulation without relying on synthetic polyester filling.
But there is an important difference between wool above and below you.
Wool quilt
Primarily controls how much body heat escapes upward.
Wool underlay or topper
Helps manage the interface between your body and the mattress.
For someone who sleeps cold, both may be valuable.
For someone who sleeps hot, the solution may be more counter-intuitive:
A lighter quilt above you and a breathable wool layer underneath you.
This can help address both sides of the sleeping environment.
Australian Wool Quilts
Australian wool makes an excellent quilt filling because its crimp creates insulating pockets of air without requiring synthetic fibre.
The amount of wool used determines much of the warmth of the quilt.
Lighter wool quilts
Suitable for warmer bedrooms, warmer climates and people who naturally sleep warm.
Medium-weight wool quilts
Suitable for a broad range of conditions and transitional seasons.
Heavier wool quilts
Designed for cooler bedrooms, winter conditions and people who naturally sleep cold.
Rather than simply choosing the warmest quilt available, choose the amount of insulation that suits your body, bedroom and climate.
Wool Creates a Microclimate Around the Sleeper
The temperature of your bedroom is only part of sleep comfort.
What matters most to your body is the small environment immediately around your skin.
This is sometimes described as the bed microclimate.
It is influenced by:
-
body heat
-
moisture and perspiration
-
room temperature
-
mattress materials
-
sheets
-
mattress toppers and underlays
-
quilt weight
-
sleepwear
Wool is particularly useful because it interacts with both temperature and moisture.
Its natural crimp traps insulating air, while the internal structure of the fibre can absorb significant moisture vapour without immediately feeling wet.
Research into wool bedding has found strong thermal insulation, moisture transport and moisture-buffering properties. Woolmark also reports research showing wool bedding can help maintain a more stable sleeping temperature.
The practical objective is simple:
Reduce the temperature swings that make you wake up feeling too hot, too cold or clammy.
Australian Wool for Australian Conditions
Australia presents a particular challenge for bedding.
We have enormous variations in climate — not only between regions, but often between seasons and even within the same night.
A bedroom in coastal Queensland has very different requirements from a bedroom in Bowral in July.
That makes adaptable bedding particularly valuable.
Wool works well because it isn't simply a “winter fibre”.
Its combination of insulation, breathability and moisture management allows it to work across changing conditions.
The key is using wool in the right place and in the right quantity.
A Better Way to Build the Bed
Instead of trying to solve every temperature problem with one very warm quilt, think of the bed as a series of layers.
Under the sleeper
Wool underlay or wool topper
Creates a breathable, insulating natural layer over the mattress.
Against the skin
Cotton, organic cotton or linen sheets
Natural fibres that allow heat and moisture to move away from the body.
Over the sleeper
An appropriately weighted wool quilt
Enough insulation for the conditions without excessive warmth.
Adjustable outer layers
Cotton blankets, coverlets and throws
Add them when needed. Remove them when conditions change.
This creates a bed that can be adjusted throughout the year rather than relying on one heavy layer.
Natural Fibres Work Together
We don't believe there is one perfect fibre for every part of the bed.
Different natural fibres have different strengths.
Wool
Excellent for insulation, loft, temperature buffering and moisture management.
Cotton
Breathable, comfortable and particularly suited to sheets and quilt covers.
Linen
Highly breathable and excellent for warm conditions.
Used together, natural fibres help create a sleeping environment that feels less sealed-in and more responsive to changing conditions.
That is the principle behind our approach to natural bedding.
Wool Bedding vs Polyester Bedding
Wool and polyester can both provide insulation.
But they achieve it with fundamentally different fibres.
| Australian Wool | Polyester | |
|---|---|---|
| Fibre source | Natural animal fibre | Petroleum-derived synthetic fibre |
| Structure | Naturally crimped | Manufactured fibre |
| Air pockets | Naturally created by fibre crimp | Depends on product construction |
| Moisture vapour absorption | High | Low |
| Temperature buffering | Strong | Depends heavily on construction |
| Plastic fibre | No | Yes |
| Microplastic shedding | Wool itself does not create plastic microfibres | Can shed plastic microfibres |
| Biodegradability | Biodegradable under suitable conditions | Highly persistent |
For us, the attraction of wool is not simply that it is natural.
It performs exceptionally well in the particular environment of a bed.
Australian Wool + Australian Made
Australia grows some of the world's best-known wool.
Where practical, it makes sense to turn that wool into bedding here as well.
Ecodownunder's Australian wool bedding includes products made in Australia using Australian wool.
That allows us to combine a locally available natural material with Australian manufacturing while creating products specifically suited to Australian sleeping conditions.
Who Should Consider Sleeping on Wool?
A wool underlay or topper is particularly worth considering if:
-
your mattress feels hot
-
you sleep on memory foam or another dense foam
-
you wake feeling hot or clammy
-
your mattress feels cold in winter
-
you want a softer sleeping surface
-
you want more natural fibre between yourself and your mattress
-
your partner sleeps at a different temperature from you
-
you want a bed that works across changing seasons
For many people, changing what is underneath them is a missing part of solving sleep-temperature problems.
Shop Australian Wool Bedding
Australian Wool Underlays
Create a substantial insulating and breathable layer underneath your body.
Warm in winter. More comfortable in summer.
Wool Mattress Toppers
Add natural cushioning, loft and breathability over your existing mattress.
Australian Wool Quilts
Natural insulation above the sleeper in weights suited to changing seasons.
Australian Made Bedding
Explore natural bedding made locally using carefully selected fibres.
Frequently Asked Questions
Why put wool underneath you?
A wool layer underneath the sleeper creates an insulating layer of trapped air between the body and mattress. Wool also absorbs and releases moisture vapour, helping regulate the temperature and humidity immediately around the sleeping surface.
How can a wool underlay be warm in winter and cool in summer?
Insulation slows heat transfer rather than creating heat. In cooler conditions, wool reduces heat loss from your body into the mattress. In warmer conditions, its breathable structure and moisture-management properties can help create a more stable sleeping environment between your body and the mattress.
Won't a wool underlay make a hot sleeper hotter?
Not necessarily. A wool underlay is different from simply adding a heavy blanket over the body. Wool creates a breathable, moisture-managing layer underneath you. People sleeping hot because of heat accumulating against a dense mattress may find this particularly useful.
Is a wool underlay good for a memory-foam mattress?
It can be particularly useful. Memory foam and other dense foams can restrict airflow directly underneath the sleeper and retain body heat. A wool underlay creates a breathable natural-fibre layer between your body and the foam surface.
Is a wool topper the same as a wool underlay?
They perform similar functions but generally have different constructions. A mattress topper usually places more emphasis on cushioning and changing the feel of the mattress, while a wool underlay creates a substantial wool layer directly underneath the sleeping surface.
Should I use a wool underlay in summer?
Yes, it can be used throughout the year. Wool isn't simply a winter material. Its combination of insulation, breathability and moisture management helps regulate the microclimate around the sleeper across changing temperatures.
Should hot sleepers avoid wool quilts?
Hot sleepers should generally focus on quilt weight, rather than avoiding wool itself. A lighter wool quilt can provide breathable insulation without the excessive warmth of a heavy winter quilt.
What is the best bedding combination for a hot sleeper?
A useful starting point is breathable cotton or linen sheets, a wool underlay or topper beneath the sleeper, and a relatively lightweight quilt above. Mattress construction, bedroom temperature and individual physiology also affect comfort.
Does wool absorb perspiration?
Wool can absorb substantial amounts of moisture vapour into the fibre and subsequently release it as environmental conditions change. This moisture-buffering ability is one of the reasons wool performs well in bedding.
Does a wool underlay create airflow?
A wool underlay should not be thought of as mechanically circulating air. Instead, the natural crimp of the fibres creates a three-dimensional structure containing numerous air spaces, providing a more breathable and insulating layer between the sleeper and mattress.
Is Australian wool bedding suitable all year?
Yes, provided the individual products are appropriately chosen. Underlays and toppers can be used year-round, while quilt weight should be adjusted to suit climate, season and personal sleeping temperature.
Don't Just Think About What's Over You
If your bed is uncomfortable, changing your quilt may only solve half the problem.
Think about what your body is lying on as well.
A layer of Australian wool underneath you creates a natural buffer between your body and the mattress — trapping air, managing moisture and helping moderate changes in temperature.
Warm in winter. Cooler in summer.
Sometimes the most effective layer in the bed is the one you don't see.
Living with Nature. Every day.