WellFlex ICE Split Head King mattress on an MS300 adjustable base, with one head section raised and the other flat in a bright bedroom.
Angled view of the WellFlex ICE Split Head King mattress on an MS300 adjustable base with one head section and the foot section elevated.
Front view of the WellFlex ICE Split Head King mattress on an MS300 adjustable base with different head elevations and the foot section raised.
Front view of the WellFlex ICE Split Head King mattress on an MS300 adjustable base with one head section raised and the foot section flat.
WellFlex ICE Split Head King mattress lying flat on an MS300 adjustable base, showing the split head sections and connected lower surface.
Angled view of the WellFlex ICE Split Head King mattress, showing its split-top design, white and blue patterned cover, and charcoal side panels.
Front view of the WellFlex ICE Split Head King mattress, showing two separate head sections that join into one continuous lower sleep surface.
Split Head King Sleep System

WellFlex ICE Split Head King

Adjust separately, sleep connected

Independent head elevation for each sleeper, with one undivided king surface below. Pairs the cooling comfort of WellFlex ICE with a split-top design.

1Choose your feel
2Complete your system
Your system
  Lease to own   Pay as low as   $/week

Free shipping · 10-Year Limited Warranty

Individual Elevation in One Mattress

Made for couples who want a sleep experience that feels both personal and connected, the Split Head King system pairs the cooling comfort of our WellFlex ICE mattress with independent head elevation.

The split-top design allows the upper sections to adjust separately, while the lower portion stays undivided to keep the smooth, shared feel of one unified king mattress.

Two Adjustable Heads. One King Feel.

34" split-top design with a seamless lower sleep surface

HEAD OF BED Your side adjusts on its own Their side stays in place One connected sleep surface no gap, no divide 34" FOOT OF BED

Zero Partner Disturbance

Change your position without changing theirs. The split-head design moves only the side being adjusted, so you can raise or lower your section while your partner stays comfortably in place.

Connected Closeness

Enjoy the freedom of individual adjustability without feeling separated from your partner. Unlike a traditional split king, this split-top design divides only the top 34 inches, keeping the lower sleep surface connected for the close, continuous feel of one king mattress.

Individualized Elevation

Different routines call for different comfort. Whether you're sitting up to read, watching TV, or finding a more comfortable rest angle, each person can enjoy the position that feels right for them.

Over 1,500 retail partners

Try it in store
before you buy

Nothing beats lying down on the real thing. Find an authorised MLILY retailer near you and feel the difference in person.

  • Lie on every comfort level side by side
  • Talk to a trained sleep specialist
  • Local delivery and old mattress removal
  • Same MLILY warranty, wherever you buy

Find a store near you

Enter your ZIP code and we will show you the closest retailers carrying MLILY.

Browse all retailers

Stores near you

No locator block added yet. In the theme editor, open this section, choose Add block, and pick your store locator app. It renders right here inside the popup.

Open the full store locator

Choose Your WellFlex ICE Feel

Both options include cooling comfort from ActiveTemp™ PCM.

WellFlex ICE Firmer 1.0

Selected

A supportive memory foam mattress designed for a more stable feel with gentle contouring and cooling comfort from ActiveTemp™ PCM.

PlusherFirmer

WellFlex ICE Plusher 3.0

Selected

A softer memory foam mattress with added comfort layers for enhanced contouring and cooling comfort from ActiveTemp™ PCM.

PlusherFirmer
MLILY MS300 Adjustable Base - three-quarter view
Complete your system

The MS300 Adjustable Base

The MS300 Adjustable Base completes your Split Head King system with a foundation built for comfort that adapts to you. With wireless remote control, it's easy to tailor the experience to the way you rest, relax, or unwind.

Head & Foot Elevation

Head and foot elevation lets you fine-tune the bed to your preferred angle, whether you want a subtle lift or a more elevated feel.

  • • Save favorite positions as presets
  • • Anti-Snore mode
  • • Zero Gravity mode

Built-in Massage

Built-in massage adds a dedicated layer of relaxation beyond positioning.

  • • Three targeted modes
  • • Preset intensity levels
  • • Timer controls

Charging & Lighting

The MS300 also adds convenience to your sleep setup.

  • • USB charging ports keep devices powered and close at hand
  • • LED under-bed lighting adds a soft glow for easier nighttime visibility

Tailored, Tool-Free Setup

Choose the frame height that works best for you, with setup that stays simple from the start.

  • • Adjustable 3-in-1 legs
  • • Tool-free assembly

WellFlex ICE Split Head King Mattress and MS300 Adjustable Base

The WellFlex ICE Split Head King system pairs cooling memory foam comfort with the personalized positioning of the MS300 Adjustable Base. Designed for couples, the mattress features a 34-inch split at the head so each sleeper can adjust their upper section independently. The lower portion stays connected, preserving the continuous feel of one king mattress.

Whether you are reading, watching TV, or settling in for the night, this split head king adjustable bed lets you choose your own head position while sharing the same sleep surface. Unlike a traditional split king made from two separate mattresses, the WellFlex ICE Split Head King divides only the upper portion of the mattress.

WellFlex ICE combines body-contouring memory foam with cooling materials for comfortable pressure relief. Gel AeroFusion® Memory Foam with ActiveTemp™ PCM helps absorb and release heat as temperatures change, while an Enhanced Cooling Knit Fabric Cover provides a cool-to-the-touch surface. Choose Firmer 1.0 or Plusher 3.0 to suit your preferred comfort level.

Split Head King System Features

  • 34-inch split-top mattress design for independent head positioning
  • Connected lower sleep surface for the shared feel of one king mattress
  • Enhanced Cooling Knit Fabric Cover that feels cool to the touch
  • Gel AeroFusion® Memory Foam with ActiveTemp™ PCM for temperature regulation
  • Available in Firmer 1.0 and Plusher 3.0 comfort levels
  • MS300 Adjustable Base with head and foot elevation and wireless remote control
  • Saved position presets, Anti-Snore mode, and Zero Gravity mode
  • Built-in massage with three targeted modes, intensity settings, and timer controls
  • USB charging ports and LED under-bed lighting
  • Adjustable 3-in-1 legs and tool-free assembly

WellFlex ICE Comfort Options

Firmer 1.0: A more stable, supportive memory foam feel with gentle contouring and cooling comfort from ActiveTemp™ PCM.

Plusher 3.0: A softer memory foam feel with added comfort layers for deeper contouring and cooling comfort from ActiveTemp™ PCM.

Personalized Positioning with the MS300 Adjustable Base

The MS300 Adjustable Base completes the WellFlex ICE Split Head King system with independent head adjustment and foot elevation. Wireless remote control makes it easy to change positions, save your favorites, or select the preset Anti-Snore and Zero Gravity modes.

Built-in massage offers three targeted modes with intensity settings and timer controls. USB charging ports keep devices close at hand, LED under-bed lighting provides a soft nighttime glow, and adjustable 3-in-1 legs let you select your preferred base height.

Frequently Asked Questions

What is a split head king mattress?

A split head king is one king-size mattress with a divided upper section and a connected lower section. The WellFlex ICE Split Head King has a 34-inch split at the head, allowing each sleeper to raise or lower their head section independently when paired with the MS300 Adjustable Base.

How is a split head king different from a split king?

A traditional split king uses two separate mattresses placed side by side, creating a division along the full length of the bed. The WellFlex ICE Split Head King divides only the top 34 inches. Its lower portion remains connected for a continuous shared sleep surface.

Can each person adjust their head position separately?

Yes. When paired with the MS300 Adjustable Base, each head section adjusts independently. One person can sit up to read or watch TV while the other keeps their head section at a different angle.

Does the WellFlex ICE Split Head King have cooling features?

Yes. It combines an Enhanced Cooling Knit Fabric Cover with Gel AeroFusion® Memory Foam and ActiveTemp™ PCM. These materials provide a cool-to-the-touch surface and help regulate temperature while the memory foam contours to the body.

Which WellFlex ICE Split Head King comfort level should I choose?

Choose Firmer 1.0 if you prefer a more stable, supportive feel with gentle contouring. Choose Plusher 3.0 if you prefer softer cushioning and deeper contouring. Both options include cooling comfort from ActiveTemp™ PCM.

What features does the MS300 Adjustable Base offer?

The MS300 offers independent head positioning for the split head system, foot elevation, wireless remote control, saved position presets, Anti-Snore and Zero Gravity modes, and built-in massage. It also includes USB charging ports, LED under-bed lighting, adjustable 3-in-1 legs, and tool-free assembly.