Split King Adjustable Bed Bases

How Does a Split King Adjustable Bed Work?

A split king adjustable bed places two separate mattresses and adjustable bed bases beside each other.

The two Long Single sides create a king-width sleeping area while allowing each sleeper to control their own position.

Each Side Operates Independently

Independent movement is the feature that separates a Split King from many standard king adjustable beds.

One partner can:

• raise their head
• elevate their legs or feet
• use a preset position
• change their sleeping position
• remain flat

The other partner can choose a completely different position at the same time.

This can be useful when two sleepers have different comfort preferences, body sizes, sleeping habits or mobility needs.

Can Both Sides Move Together?

Selected Split King adjustable bases can also be synchronised.

This allows both sides to move together when desired while still giving couples the option of separate controls where the model supports it.

Control systems differ between products. Check whether the base uses separate or synchronised wireless remote controls, Bluetooth, an app or another control method before ordering.

What Size Is a Split King Adjustable Bed in Australia?

Life Changing Beds uses a nominal Split King sleeping size of 1840 mm wide × 2030 mm long, based on two Long Single sleep surfaces.

That is different from placing two Australian King Single mattresses together.

Long Single vs King Single

A typical Life Changing Beds Long Single mattress is approximately:

920 × 2030 mm

Two create a nominal:

1840 × 2030 mm Split King

A King Single is wider than a Long Single, so two King Singles would create a much wider overall bed.

This distinction matters when buying the base, mattress, fitted sheets and bedroom furniture.

Why the Full Base Dimensions Matter

The mattress size does not always equal the full dimensions of the adjustable bed.

Motors, frames, upholstery and other components can change the final width, length and height.

Before buying, check:

• mattress dimensions
• complete adjustable base dimensions
• height from the floor
• minimum and maximum height for Hi-Lo adjustable beds
• clearance around moving sections
• available room space
• headboard or surround dimensions

Do not plan a bedroom layout using the nominal mattress dimensions alone.

How Much Room Does a Split King Need?

A Split King is a large bed, so measure more than the space where the mattress will sit.

Allow room for:

• access on each side
• bedside tables
• opening doors and wardrobes
• power access
• walking aids
• wheelchair access where required
• transfer equipment or hoists where applicable

There is no universal rule that every adjustable base needs the same clearance around its motors. Follow the installation requirements for the exact model.

If the room cannot comfortably accommodate a Split King, compare other configurations such as Split Queen, Queen, King Single or Long Single adjustable beds.

What Is the Best Split King Adjustable Bed?

The best Split King is the configuration that matches how both people will use it.

Start by deciding whether you need a lifestyle adjustable base or a Hi-Lo adjustable bed.

Lifestyle Adjustable Beds

Lifestyle adjustable beds focus on changing the sleeping position.

Depending on the model, you may be able to adjust the:

• head
• upper body
• knees
• legs
• feet

Selected models add features such as massage functions, Zero Gravity, anti-snore presets, lumbar adjustment, pillow tilt, under-bed lighting and wireless remote controls.

A lifestyle base may be the more relevant option when the main goal is independent positioning and personalised comfort.

Hi-Lo Adjustable Beds

A Hi-Lo bed adds whole-platform height adjustment.

The complete mattress platform can move higher or closer to the floor as well as adjusting the head and leg sections.

That additional movement may be useful when transfer height, wheelchair access, assistance from another person or home-care requirements need to be considered.

Hi-Lo is therefore different from a standard adjustable base. It changes the height of the whole sleeping platform, not just the sleeping position.

Which Adjustable Bed Features Do You Actually Need?

More features do not automatically make one adjustable bed better than another.

Compare functions against how you expect to use the bed every day.

Zero Gravity

Zero Gravity is a preset position offered on many adjustable bed models.

It elevates parts of the upper and lower body rather than leaving the sleeper completely flat.

Some sleepers find this a comfortable position for resting, reading or relaxing.

The exact position varies between bases, so do not assume every Zero Gravity preset uses identical angles.

Anti-Snore Position

Selected bases include an anti-snore preset that elevates the upper body.

Raising the head may change snoring for some sleepers, but results are individual.

An adjustable bed does not treat sleep apnoea or guarantee that snoring will stop.

Massage Functions

Some premium adjustable beds include massage functions.

These may use vibration through different sections of the base and can usually be controlled from the remote.

If massage matters to you, compare the available zones, settings and controls rather than assuming it is standard across the range.

Memory and Preset Positions

Memory functions allow selected bases to save a preferred position.

This can make it easier to return to a favourite sleeping or resting position without adjusting the head and legs separately each time.

Under-Bed LED Lighting

Selected adjustable bases include under-bed LED lighting.

Low-level lighting can make the floor easier to see when getting in or out of bed at night without turning on brighter bedroom lights.

This feature is model-specific.

Wireless Remote Controls

Many adjustable beds use a wireless remote.

Depending on the model, remote controls may operate:

• head elevation
• leg elevation
• Zero Gravity
• anti-snore
• massage
• memory positions
• Hi-Lo movement
• lighting
• other premium features

Choose based on the controls you can use comfortably rather than the number of buttons on the remote.

How Much Does a Split King Adjustable Bed Cost?

Split King prices vary because the products can be very different.

Price may change based on:

• lifestyle or Hi-Lo operation
• frame design
• motor system
• safe working load
• adjustment range
• premium features
• mattress choice
• upholstery
• furniture
• package inclusions
• warranty
• customisation

A higher price does not automatically mean a particular bed is the right option for you.

Instead, compare what the package includes.

Some listings may be for adjustable bed bases only. Others may combine bases with mattresses, a headboard, surround or other bedroom furniture.

Use the current product cards on this page for live prices and check the individual product before purchasing because prices, availability and promotions can change.

The Middle Gap in a Split King Adjustable Bed

A Split King has a centre seam.

It uses two separate mattresses because both sides need to move independently. That means the join cannot simply be treated like a one-piece king mattress.

For couples considering a Split King, the more useful question is not whether a seam exists. It is how noticeable it will be and how well the two sides remain aligned.

How Do You Stop a Split King from Separating?

Start with the correct mattress and adjustable base pairing.

Both sides should:

• be the correct dimensions
• sit at compatible heights
• be installed correctly
• remain aligned during normal adjustment

Some adjustable bed systems use model-specific methods to connect, position or retain the two sides.

Do not assume a generic bed strap, gap filler or mattress bridge is suitable for an adjustable bed.

An accessory designed for a static king size bed could interfere when one mattress rises and the other remains flat.

Mattress Edge Support Matters

The construction of both mattresses can also affect how the centre feels.

A mattress with supportive edges may feel different near the centre seam from a softer mattress that compresses heavily at the edge.

Edge construction varies between mattresses, so compare how the exact mattress feels rather than relying only on its material type.

Trying the combination in store can be especially useful if either sleeper regularly sleeps near the centre of the bed.

Can a Headboard or Surround Hide the Gap?

A bed surround or wide headboard can make a Split King look more like one complete bedroom setting.

Life Changing Beds offers bedroom furniture and surrounds for selected adjustable beds.

A headboard can visually connect the two sides, but it does not remove the mattress seam.

The two mattresses still need enough freedom to move independently.

Standard King vs Split King Adjustable Bed

Feature	Standard King	Split King Adjustable Bed
Mattress	One king mattress	Two separate Long Single mattresses
Base	One shared system	Two adjustable bed bases
Independent movement	Usually limited	Each side can operate independently
Different positions	Both sleepers generally share movement	Each sleeper can choose their own position
Mattress comfort	One shared mattress feel	Different compatible comfort choices may be possible
Motion transfer	Depends on mattress	Separate mattresses may reduce transferred movement
Fitted sheets	One King fitted sheet	Two Long Single fitted sheets
Top bedding	King bedding	King top bedding can cover both sides
Centre seam	None through the mattress	Seam between the two mattresses
Frame requirements	Must fit one base	Must fit both adjustable bases

Can You Put a Split King Adjustable Bed in an Existing Bed Frame?

Sometimes.

Existing bed frame compatibility is model-specific.

Selected lower-profile adjustable bed bases can work with an existing or storage bed base. Other models need their own legs, glides or castors.

Hi-Lo adjustable beds have different requirements again because the complete platform moves vertically.

What Should You Measure?

Before putting adjustable bases inside an existing bed frame, measure:

• internal width
• internal length
• base height
• surrounding frame height
• headboard and footboard clearance
• space around moving sections
• power access

Compare those measurements with the exact product specification.

A bed frame can fit both mattresses while still being too small or restrictive for the powered bases underneath.

What Mattresses Work on a Split King Adjustable Bed?

Not every mattress is suitable for an adjustable base.

The mattress must be able to flex safely when the head and legs move.

Memory Foam Mattresses

Selected memory foam mattresses can work well on adjustable bases because the material can flex with the changing position.

Construction still matters.

Mattress depth, layers, weight and edge design all affect compatibility.

Natural Latex Mattresses

Natural latex is another flexible mattress material commonly used with adjustable bases.

Selected natural latex mattresses in the Life Changing Beds range are designed for adjustable-bed use.

Again, do not choose by material alone. Confirm the exact mattress and base combination.

Hybrid and Pocket-Spring Mattresses

Some hybrid and flexible pocket-spring mattresses are also suitable for adjustable beds.

The internal construction needs to allow repeated movement.

A traditional rigid innerspring mattress may not be suitable.

Can Each Partner Choose a Different Mattress?

One benefit of a Split King is that each sleeper has a separate mattress.

Where the mattress range supports it, one partner may be able to select a softer feel while the other chooses something firmer.

This may suit:

• side sleepers with different preferences
• partners with different body weights
• people who prefer different mattress materials
• couples who cannot agree on one shared firmness

Both mattresses still need to be compatible with the chosen adjustable bed bases and create an appropriate final height.

What Sheets Do You Need for a Split King?

The most practical Split King bedding setup is:

2 × Long Single fitted sheets + 1 × King flat sheet + 1 × King quilt or doona.

Each mattress gets its own fitted sheet so it can move independently.

A shared King flat sheet and quilt can then cover both sides if you want the bed to look and feel more like one sleeping space.

Check Fitted Sheet Depth

Width and length are not the only measurements that matter.

Check the mattress depth as well.

A fitted sheet with pockets that are too shallow can pull away from the mattress as the adjustable base moves.

Can You Use One King Fitted Sheet?

Generally, separate fitted sheets are the practical choice.

A single fitted King sheet stretched across both mattresses can restrict independent movement and put tension on the bedding when one side changes position.

How Do You Change Sheets on a Split King Adjustable Bed?

Change one side at a time.

Using the remote to raise a section of the mattress may make some areas easier to reach than when the bed is completely flat.

Do not use movement that feels unsafe or forces you to bend or lift beyond what is comfortable.

If changing bedding is physically difficult, ask another person for assistance.

Sleep Positions and Personalised Comfort

Adjustable beds give sleepers more ways to position their body than a fixed flat base.

That can be useful even when there is no medical reason for buying the bed.

One sleeper may prefer their upper body slightly elevated. Another may like their feet raised. A side sleeper may find a different position comfortable from a back sleeper.

The main advantage of the Split King setup is that neither partner has to copy the other's position.

What About Back Pain, Joint Pain and Pressure Relief?

People living with back pain, chronic pain or joint pain may investigate adjustable beds because changing position can help them find a more comfortable way to rest.

Changing the head, legs and mattress angle also changes where the body contacts the sleep surface and where pressure is felt.

However, an adjustable bed should not be described as a treatment for chronic pain, joint pain or spinal problems.

It also cannot guarantee improved spinal alignment, better blood circulation, pressure relief or a better night's sleep.

If pain, pressure points or another health condition is driving the purchase, discuss individual suitability with your treating clinician or occupational therapist.

Life Changing Beds can then help compare appropriate bed and mattress options within that advice.

Can an Adjustable Bed Help with Snoring or Acid Reflux?

Upper-body elevation is one reason some people investigate adjustable beds.

Selected models include an anti-snore position, while most adjustable bases allow the head to be raised manually.

Changing position may affect snoring or comfort for some people.

It does not mean the bed treats sleep apnoea, acid reflux or another medical condition.

Persistent snoring, suspected sleep apnoea or reflux symptoms should be discussed with an appropriate health professional.

Power and Battery Backup

Every powered adjustable bed needs suitable access to electricity.

Do not assume all Split King adjustable beds use the same electrical layout or one shared power cord. Confirm the setup for the selected model.

What Happens in a Power Outage?

Battery backup varies between models.

Some adjustable bases include an emergency power function. Others may use an optional compatible battery backup.

If backup power matters to you, ask:

• whether it is included
• whether it is optional
• which battery is compatible
• what movements it can perform during an outage

Do not assume backup power will run massage, lighting or every other feature.

Split King Adjustable Beds and NDIS Funding

An adjustable bed may be considered through the NDIS when it relates to a participant's disability, goals and assessed support needs.

Funding is not automatic.

Life Changing Beds works with NDIS participants, occupational therapists and plan stakeholders to compare suitable equipment, provide specifications and prepare quotes.

For an NDIS-funded bed through Life Changing Beds, an occupational therapist needs to observe the client trial the proposed bed and provide the required sign-off.

The exact approval and evidence process depends on the participant, plan, equipment and current NDIS requirements.

Delivery and Installation

A Split King uses two powered bases, so delivery planning matters.

Life Changing Beds provides its own delivery service across Victoria and uses third-party freight providers for deliveries outside Victoria.

Delivery can also be arranged for apartments, multi-storey homes and other complex-access properties.

Tell the Team About Access Before Delivery

Before confirming delivery, provide information about:

• stairs
• lifts
• doorway widths
• loading or parking restrictions
• room dimensions
• existing beds and furniture
• power access
• any unusual access requirements

This lets the delivery scope be planned before the beds arrive.

Depending on the agreed service, delivery may include room placement, assembly, an operational check, handover and packaging removal.

Removal or movement of an existing bed should be confirmed and quoted separately where required.

Mattress Guarantee vs Adjustable Bed Warranty

These are two different things.

150-Night Mattress Guarantee

Life Changing Beds' 150-Night Comfort and Support Guarantee applies to eligible mattresses recommended by Life Changing Beds.

It is a conditional mattress exchange policy, not a 150-night trial of the adjustable bed base.

Conditions include mattress-protector requirements, notification timing, minimum use, one exchange and applicable delivery charges.

Adjustable Base Warranty

The adjustable base is covered by its applicable product or manufacturer warranty.

Warranty periods can vary between:

• the frame
• motor
• electrical components
• remote control
• other parts

Check the exact warranty for the model you are considering rather than relying on a category-wide warranty claim.

Try a Split King Adjustable Bed In Store

A Split King is easier to assess when both partners can try it.

Visit the Life Changing Beds showroom at 624 Burwood Road, Hawthorn East VIC 3123 to compare adjustable bases, mattresses and Split King configurations.

During a consultation, consider:

• lifestyle versus Hi-Lo
• independent versus synchronised movement
• mattress firmness for each partner
• centre seam comfort
• sleeping positions
• Zero Gravity and anti-snore functions
• remote controls
• massage functions
• bed height
• existing frame compatibility
• room dimensions
• delivery access
• NDIS or OT requirements

The aim is not to find the bed with the most premium features. It is to find the combination that works for both sleepers and fits the room, mattress, access and support requirements.

Compare the current Split King adjustable beds and prices on this page, or book a free consultation to try suitable options in store.

Frequently Asked Questions

What Is a Split King Adjustable Bed?

A split king adjustable bed combines two separate Long Single mattresses and adjustable bases to create a king-width sleeping space.

Each side can move independently so two sleepers can use different positions.

How Wide Is a Split King Adjustable Bed?

Life Changing Beds uses a nominal Split King sleeping width of 1840 mm and length of 2030 mm.

The complete adjustable base dimensions can vary by model.

Is a Split King the Same as Two King Singles?

No.

A typical Australian Split King uses two Long Single sleep surfaces. King Single mattresses are wider.

How Do You Fill the Gap in a Split King Adjustable Bed?

Do not automatically use a generic gap filler or bed bridge.

Because each side needs to move independently, any accessory placed across the centre needs to be compatible with the selected adjustable bed.

Correct mattress sizing, alignment and edge construction should be considered first.

How Do You Keep a Split King Adjustable Bed Together?

Use compatible adjustable bases and mattresses and install them according to the manufacturer's instructions.

Model-specific joining or alignment options may be available.

Avoid generic straps or connectors unless they are confirmed as suitable for the selected bases.

What Sheets Fit a Split King Adjustable Bed?

Use two Long Single fitted sheets.

You can then use a King flat sheet, quilt or doona across both mattresses if preferred.

Can You Use Memory Foam on a Split King Adjustable Bed?

Selected memory foam mattresses are suitable for adjustable bases.

Natural latex, hybrid and flexible pocket-spring mattresses may also be compatible.

Always confirm the exact mattress and adjustable base combination.

Can Each Side Have a Different Mattress Firmness?

Potentially.

Because there are two mattresses, compatible ranges may allow each sleeper to choose a different comfort feel.

Both mattresses still need to work correctly with the bases and final Split King setup.

Can a Split King Fit Inside an Existing Bed Frame?

Selected adjustable bases can work with existing bed frames or storage bases.

Measure the internal frame and check the exact base dimensions and clearance requirements before ordering.

Does a Split King Adjustable Bed Help with Back Pain?

Changing position may help some people find a more comfortable way to rest.

An adjustable bed does not treat or cure back pain, chronic pain or joint pain. Seek advice from your treating health professional when a medical condition is a major reason for choosing the bed.

Can an Adjustable Bed Help with Snoring?

Raising the upper body may change snoring for some sleepers, and selected models have an anti-snore preset.

An adjustable bed does not treat sleep apnoea or guarantee that snoring will stop.

What Happens During a Power Outage?

It depends on the base.

Selected models support emergency or battery backup functions. Check the exact model and what the backup system can operate.

Can I Buy a Split King Adjustable Bed Through the NDIS?

Funding may be possible when the equipment relates to the participant's disability, goals and assessed needs.

Approval is not automatic. For Life Changing Beds' NDIS process, an occupational therapist needs to observe the client trial the bed and provide the required sign-off.