What is the Difference Between Bed Pads and Underpads? Which one should I use?

The main difference is that bed pads are designed for comfort, long-term use, and protecting mattresses, while underpads are made to quickly absorb fluids and keep beds, chairs, and other surfaces dry. 

If you need everyday protection for home, aged care, or hospital use, reusable bed pads are a cost-effective choice. For managing incontinence, post-surgery care, or situations where fast cleanup is important, disposable underpads are usually the better option. 

This guide explains the key differences, benefits, and how to choose the right absorbent pad for your needs. 

Are Bed Pads and Underpads the Same Thing? 

Yes, bed pads and underpads are often used interchangeably in Australia. Both help protect beds, chairs, and other surfaces from incontinence leaks. However, product names may vary between suppliers, manufacturers, and healthcare settings.

You may also see names such as disposable underpads, reusable bed pads, Chux pads, and incontinence sheets. While these products serve a similar purpose, they aren't always identical.

They can differ in absorbency, reusable or disposable design, waterproof backing, size, and intended use in home care, hospitals, or aged care facilities.

Instead of focusing on the product name, compare its absorbency, material, waterproof protection, size, and intended application.

Choosing the right product based on these features will provide better comfort, skin protection, and reliable mattress or furniture protection.

What Is a Bed Pad? 

A bed pad is an absorbent protective layer placed on top of a mattress or bedding area to help manage moisture and protect surfaces from leaks, spills, and incontinence. They are commonly used in aged care, hospitals, disability care, and home care settings.

Bed pads typically include a soft absorbent layer to draw in fluid, a core that locks away moisture, and a waterproof backing to prevent leaks reaching the mattress.

Available in disposable and reusable options, they come in different sizes and absorbency levels to suit different care needs.

Common Features of Bed Pads 

Bed pads are designed with multiple layers to provide reliable moisture protection and user comfort.

Common features include:

• Absorbent core: Quickly absorbs and locks away moisture to help keep surfaces dry.
• Waterproof backing: Prevents leaks from reaching mattresses, chairs, and bedding.
• Multi-layer construction: Combines softness, absorbency, and protection in one pad.
• Quilted surface: Improves comfort while helping distribute moisture evenly.
• Different sizes and absorbency levels: Available to suit various care needs and usage areas.
• Disposable or reusable options: Choose between convenient single-use pads or washable solutions.

What Are Bed Pads Used For?

Bed pads are used to provide extra protection and support moisture management in healthcare and everyday care environments.

Common uses include:

• Incontinence management: Helps manage bladder leaks and maintain hygiene.
• Mattress protection: Protects bedding and mattresses from moisture damage.
• Bed protection: Provides an additional protective layer for overnight care.
• Chair and surface protection: Suitable for wheelchairs, recliners, and seating areas.
• Healthcare and aged care: Widely used in hospitals, nursing homes, and care facilities.
• Home care: Supports comfortable and easier care routines at home.

What Is an Underpad?

An underpad is an absorbent protective pad designed to create a barrier between a person and the surface underneath, such as a bed, chair, or medical examination table. It helps manage moisture from incontinence, spills, and other fluid-related needs while protecting furniture and bedding.

Underpads are commonly used in healthcare, aged care, and home care settings. They are also known by different names, including disposable underpads, Chux pads, blueys, absorbent underpads, and incontinence underpads. 

The right choice depends on factors such as absorbency level, size, and whether the pad is designed for single use or repeated washing.

Common Features of Underpads

Underpads are designed with features that improve moisture control, hygiene, and comfort, including:

• High-absorbency core layers: Quickly absorb and lock away moisture to help keep surfaces dry.
• Waterproof moisture barrier: Helps prevent leaks onto beds, chairs, and other surfaces.
• Non-slip backing: Helps keep the pad securely in place during use.
• Soft or quilted top layer: Provides added comfort and improves fluid distribution.
• Different absorbency levels: Available for light to heavy moisture protection needs.
• Disposable and reusable formats: Offers flexible options for healthcare facilities and home care use.

Bed Pads vs Underpads: What Is the Difference? 

The difference between bed pads and underpads is often related more to terminology than function. Both are designed to absorb moisture and protect surfaces from leaks, spills, and incontinence. 

For an effective incontinence bed pads comparison, choose a product that matches the user’s level of care needs, comfort requirements, and the surface requiring protection. 

What Are Bed Pads and Underpads Made Of?

Bed pads and underpads are designed with multiple layers that work together to absorb moisture, prevent leaks, and keep the user and surface dry.

The construction usually includes an absorbent core, moisture barrier, top sheet, and multi-layer design for effective fluid management.

1. Absorbent Core

The absorbent core is the main layer responsible for fluid retention. Many bed pads and underpads use a combination of pulp fibres and superabsorbent polymers (SAP) to quickly absorb and lock away moisture. Higher-absorbency core layers are designed for heavier incontinence protection and longer periods of use.

2. Moisture Barrier and Waterproof Backing

The waterproof backing acts as a protective barrier to stop fluids from passing through to mattresses, chairs, and bedding. Waterproof underpads for beds help reduce the risk of stains, odours, and moisture damage while making cleaning and maintenance easier.

3. Top Sheet

The top sheet is the layer that comes into direct contact with the user. It is designed to feel soft and comfortable while allowing moisture to pass through quickly to the absorbent core, helping maintain a drier surface.

4. Multi-Layer Construction

A multi-layer construction combines each component to improve overall performance. The top sheet manages surface dryness, the absorbent core provides moisture retention, and the backing layer prevents leaks.

Together, these layers create reliable protection for beds, chairs, and other surfaces in healthcare, aged care, and home care environments.

Disposable vs Reusable Bed Pads and Underpads 

Should I Use Reusable or Disposable Underpads for Incontinence?

Choosing between reusable vs disposable underpads depends on your care needs, lifestyle, and environment. Both options provide effective moisture protection, but the right choice depends on factors such as:

• Frequency of use: Reusable underpads are suitable for regular daily use, while disposable underpads are ideal when frequent changes are required.
• Laundry capacity: Reusable options require washing and drying facilities, whereas disposable underpads offer a convenient solution without laundry requirements.
• Infection-control requirements: Disposable underpads are often preferred in hospitals and aged care settings where regular replacement and hygiene management are important.
• Care environment: Reusable underpads work well for home care and long-term use, while disposable options are commonly used in healthcare facilities and high-care environments.
• Long-term cost: Washable underpads can be more cost-effective over time, while disposable underpads provide convenience with ongoing replacement costs.
• Sustainability priorities: Reusable underpads help reduce waste through repeated use, while disposable underpads offer easier disposal and time-saving benefits.

When deciding whether to use reusable or disposable underpads for incontinence, consider your cleaning routine, care requirements, budget, and environmental preferences.

Both washable and throwaway protection options can provide reliable moisture management when chosen for the right situation.

Key Features to Look for in an Underpad or Bed Pad

Choosing the right underpad or bed pad involves more than selecting the highest absorbency. Consider these key features to ensure the best balance of comfort, protection, and performance.

1. Absorbency and Fluid Capacity

Choose an absorbency level that matches the user's incontinence needs. A higher-capacity pad isn't always the best choice, as selecting the right absorbency helps improve comfort, reduce waste, and provide effective moisture protection.

2. Waterproof Backing

A waterproof backing helps prevent leaks from reaching mattresses, bedding, chairs, and other furniture. This added barrier protects surfaces from moisture damage and makes cleaning easier.

3. Non-Slip Backing

A non-slip backing helps keep the pad securely in place, reducing movement during use and providing more reliable protection, particularly for active users or chair seating.

4. Size and Coverage

Select a pad that provides adequate coverage for the bed or chair. A pad that's too small may leave surrounding areas exposed to moisture, increasing the risk of leaks and surface damage.

5. Tuck-In Wings

Some reusable bed pads feature tuck-in wings that secure under the mattress. These help keep the pad positioned correctly and minimise shifting during sleep or movement.

6. Soft, Quilted Surface

A soft, quilted top layer improves comfort while helping distribute moisture evenly into the absorbent core, keeping the surface drier for longer.

7. Latex-Free Material

For users with latex allergies or sensitive skin, choose latex-free bed pads and underpads to reduce the risk of allergic reactions while maintaining safe and comfortable care.

8. Odour-Neutralising Features

Some underpads include odour-control technology to help minimise unpleasant odours and maintain a fresher environment. If odour management is important, look for products that specifically offer this feature.

How Do Waterproof Bed Pads Protect Mattresses?

Waterproof underpads for beds protect mattresses by using a multi-layer design that absorbs moisture, locks it away, and prevents it from soaking through to the surface below. Each layer has a specific role in keeping the bed clean, dry, and protected.

• Top sheet: A soft, comfortable surface that quickly draws moisture away from the skin to help keep the user dry.
• Absorbent core: High-absorbency materials, such as fluff pulp and superabsorbent polymers (SAP), capture and retain fluid, reducing the risk of leaks and keeping the surface drier.
• Waterproof backing: A leak-proof moisture barrier prevents absorbed fluid from passing through to the mattress, chair, or bedding, helping protect against stains, odours, and moisture damage.
• Mattress protection: By combining these layers, waterproof bed pads provide reliable mattress safeguarding, extending the life of mattresses and reducing cleaning while improving hygiene in healthcare, aged care, and home care settings.

The effectiveness of waterproof underpads for beds depends on selecting the right absorbency, size, and construction for the user's level of incontinence and care needs.

How to Choose the Right Bed Pad or Underpad

Choosing the right bed pad or underpad helps improve comfort, protect surfaces, and support effective incontinence care.

1. Consider the Level of Incontinence

Choose a pad with an absorbency level that matches the user's needs. Light leaks may only require a low-absorbency pad, while moderate to heavy incontinence benefits from higher-capacity products. Selecting the right absorbency improves comfort and reduces unnecessary product changes.

2. Choose the Correct Size

Select a pad that provides adequate coverage for the bed, mattress, or chair. A pad that's too small may leave surrounding areas exposed to moisture, increasing the risk of leaks and surface damage.

3. Choose Disposable or Reusable

Consider how often the pad will be used and the available laundry facilities. Disposable underpads are ideal for convenience and infection control, while reusable bed pads are a practical, cost-effective option for long-term home care.

4. Check the Backing

Look for a waterproof backing to protect mattresses and furniture from leaks. For chairs or active users, a non-slip backing can help keep the pad securely in place during use.

5. Consider Skin Comfort

Choose a pad with a soft, breathable surface that helps draw moisture away from the skin. Good moisture management supports comfort and helps maintain skin integrity, particularly for users requiring extended care.

6. Consider the Care Environment

The best product often depends on where it will be used:

• Home care: Prioritise comfort, ease of use, and reusable options for everyday protection.
• Hospitals: Choose high-absorbency disposable underpads that support infection control and frequent changes.
• Residential aged care: Select durable products that provide reliable moisture protection and resident comfort.
• Clinical environments: Use products that meet hygiene requirements and are appropriate for the intended medical or treatment setting.

What Are the Best Absorbent Pads for Hospital Beds?

The best absorbent pads for hospital beds depend on the patient's clinical needs, level of incontinence, and care environment rather than a single product.

Choosing the right pad helps improve comfort, protect the mattress, and support effective infection control.

When selecting a hospital bed pad, consider the following:

• Required absorbency: Match the pad's absorbency to the patient's level of incontinence to provide reliable leak protection without unnecessary bulk.
• Patient mobility: Patients who move frequently may benefit from pads with non-slip backing or tuck-in wings to help keep the pad securely in place.
• Incontinence severity: Light, moderate, and heavy incontinence require different absorbency levels to maintain comfort and reduce the risk of leaks.
• Bed size: Choose a pad that provides adequate coverage for the hospital bed to protect the mattress and surrounding bedding.
• Skin integrity: A soft, breathable surface that draws moisture away from the skin can help maintain comfort and support skin health, particularly for patients at risk of pressure injuries.
• Disposable or reusable requirements: Disposable underpads are often preferred for infection control and frequent changes, while reusable bed pads may be suitable for long-term care where laundry facilities are available.
• Infection-control procedures: Hospitals and healthcare facilities should select products that align with their hygiene protocols and clinical care requirements.

There are many hospital bed pad types available, including disposable and reusable options with varying absorbency levels, sizes, and materials. 

How Bed Pads and Underpads Support Incontinence Management

Bed pads and underpads help protect beds, chairs, and other surfaces from leaks. They support comfort and hygiene as part of a complete incontinence care routine. For the best results, choose suitable continence products based on each person's needs and care plan.

These products help support effective care by providing:

• Moisture management: Absorbent layers help capture and retain fluid, keeping bedding and surfaces drier while reducing the impact of leaks.
• Mattress safeguarding: Waterproof backing helps protect mattresses, chairs, and other surfaces from moisture damage, stains, and odours.
• Improved hygiene: Regular pad changes support cleaner care environments and help maintain better hygiene standards in home care, aged care, and healthcare settings.
• Skin integrity support: Soft top layers and effective moisture control help reduce prolonged exposure to wetness, supporting skin comfort and care.
• Reduced laundry workload: Protective pads help minimise the need for frequent washing of bedding, sheets, and furniture covers.
• Resident comfort and dignity: The right bed pad or underpad provides added reassurance, comfort, and confidence for users managing incontinence.

When selected correctly, bed pads and underpads complement a complete continence care approach by improving protection, comfort, and daily care efficiency.

Common Mistakes When Choosing Bed Pads and Underpads

Choosing the right bed pad or underpad requires looking beyond the product name. Focusing only on labels or absorbency ratings can lead to poor protection, discomfort, or unnecessary costs.

1. Choosing Based Only on the Product Name

The terms bed pad and underpad often overlap and may be used differently by manufacturers and healthcare providers. Instead of relying on the name alone, consider the product’s absorbency, size, backing, materials, and intended use.

2. Choosing Absorbency Without Considering Size

A highly absorbent pad may not provide effective protection if it does not cover the required area. Always consider both absorbency level and pad size to ensure proper coverage and moisture protection.

3. Using an Undersized Pad

A pad that is too small may leave parts of the mattress, bedding, or chair exposed to leaks. Selecting the correct size helps provide better protection and reduces the need for additional cleaning.

4. Selecting the Highest Absorbency for Everyone

The highest absorbency option is not always the best choice. Matching absorbency to the user's actual needs improves comfort, reduces waste, and ensures the pad performs effectively.

5. Ignoring Backing and Position Stability

A pad without suitable backing may move during use and reduce protection. Consider features such as waterproof backing, non-slip surfaces, or tuck-in wings to help keep the pad securely positioned.

6. Treating Mattress Protection as Separate From Incontinence Management

Mattress protection is an important part of effective incontinence care. A suitable bed pad or underpad works alongside continence products by managing moisture, protecting surfaces, and improving comfort for users and caregivers.

Frequently asked questions

1. What is the difference between a bed pad and an underpad?

Bed pads are designed primarily for long-term mattress comfort, while underpads focus on rapidly absorbing fluids and keeping various surfaces dry. While terms overlap in Australian healthcare, bed pads feature washable or cushioned designs, whereas underpads specialize in targeted incontinence protection.

2. What is the difference between a Chux pad and a bed pad?

A Chux pad is a single-use disposable underpad, whereas a bed pad often refers to a washable, reusable protective layer. Chux pads offer quick disposal for acute clinical care, while reusable bed pads provide long-term, cost-effective mattress protection in home settings. 

3. Should I use reusable or disposable underpads for incontinence?

Choose disposable underpads for convenient cleanup and strict infection control, or reusable pads for economical, long-term home care. Disposable pads suit high-turnover clinical environments, whereas washable underpads require laundering facilities but reduce ongoing single-use waste for daily home management. 

4. How do waterproof bed pads protect mattresses from leaks?

Waterproof bed pads protect mattresses using a multi-layer design with a soft top sheet, superabsorbent core, and leak-proof backing. The core locks fluids away from skin, while the waterproof backing prevents moisture, stains, and odours from soaking through to bedding. 

5. What are the best absorbent pads for hospital beds?

The best hospital bed pads feature high superabsorbent polymer (SAP) capacity, non-slip backing, and breathable, latex-free top sheets. High-capacity disposable underpads with tuck-in wings protect mattresses, prevent cross-contamination, and support patient skin integrity during extended bed rest in clinical environments.