How it works
How Castaway works
See exactly how Castaway transforms from one king bed into three sleeping spaces, how it is engineered, and what to expect in everyday use.
How Castaway works
The walkthrough
See it in motion
Our founder opens and closes the bed, shows where the switch lives, and explains what happens to the mattresses in each position.
3
Positions
17 sec
Full open or close
31″
Total separation
The transformation
Three positions
One bed. Three ways to sleep. Nothing to lift, unlatch, or take apart.
01
Closed
The two beds meet in the center to create a unified king-style sleeping surface.
115.5″ total width
02
Partially open
Release the button anywhere along the way and the bed holds that position.
Any width in between
03
Fully open
Two fully independent Twin XL beds, with the center platform fixed between them.
146.5″ total width
Everyday use
What it’s like to sleep
on Castaway
The bed moves slowly and evenly, so you can stay exactly where you are while it does.
Opening while you rest
Reach behind the nightstand and hold. You stay lying down while your side glides out.
Closing while you rest
The two beds come back together just as gently, with no need to get up first.
Sleeping across the center platform
A child, a pet, or an adult can rest on the center platform while the bed is open.
Opening and closing from in the bed, and sleeping across the center platform
The center platform explained
Inside the center platform
Engineered for
everyday comfort
The center platform is the piece that makes the transformation work. It stays where it is while the two Twin XL beds move around it.
- Why it existsIt carries the third mattress, so the space between the beds is a place to sleep rather than a gap.
- How it stays putFloor anchored and independent of the two moving platforms. It does not travel with them.
- SupportA full platform panel underneath, with no slats and nothing to shift.
- StabilityThe mattress is held in position, so the surface stays even whether the bed is open or closed.
- Mattress31″ wide and included with every Castaway. Additional or replacement mattresses are available separately.
Safety
Designed around
complete control
The bed only moves while a person is holding a button. There is no other way to make it move.
Push to operate
Movement requires a hand on the switch.
Stops when released
Let go and motion ends immediately.
Separate buttons
One opens. One closes. Never both.
No remote
Nothing to misplace or hand to a child.
No app
The bed is not connected to anything.
No automation
It never moves on its own.
No timers
No schedules and no voice control.
Safe with children and pets
Slow, quiet, fully interruptible, and easy to unplug.
Designed around complete control
Try the switch
Press and hold
That is the whole interface
A working model of the switch on the back of the nightstand. Hold a button to see how the bed responds, in real time.
- 01The right button opens. The left button closes.
- 02Each button works only while you hold it.
- 03Release at any point and the bed stops there.
- 04Both platforms move together, at the same rate.
Separation
0.0″
Position
Closed
Time held
0.0s
Timed to the real bed. A full open or close takes about 17 seconds.
Thoughtfully engineered
Built to move.
Built to last.
Solid platform support
Each Twin XL mattress rests on a full platform panel, with no slats and nothing to shift.
Stabilized center platform
Holds the middle mattress in place and stays fixed while the two beds move.
Push-to-operate controls
A built-in switch behind each nightstand, with dedicated open and close buttons.
Integrated floating nightstands
Attached to each bed and moving with it, with power outlets and USB ports built in.
Common questions
How it moves.
What to expect.
How do I open and close the bed?
Press and hold the switch on the back of either nightstand. The bed moves while you hold the button and stops the moment you release it.
How long does a full open or close take?
About 17 seconds from fully closed to fully open, and the same coming back together.
Do both sides move at the same time?
Yes. Both Twin XL platforms glide outward together at the same rate, so the bed stays balanced and centered on the headboard.
Can I stop the bed partway?
Yes. Release the button and the bed holds that position. Any width between closed and fully open is a position you can leave it in.
Is there a remote or an app?
No. The switch behind the nightstand is the only control, and it only works while it is being held.
What is the center platform?
A fixed platform that sits between the two Twin XL beds and holds the third mattress. It turns the space between the beds into a third place to sleep.
Does the center mattress move when the bed opens?
No. The center platform is anchored to the floor and independent of the two moving platforms, so it stays exactly where it is.
Where is the center platform when the bed is closed?
Concealed underneath, level with the two Twin XL platforms, so the closed bed reads as a single king-style sleeping surface.
Is the center platform safe to sleep on?
Yes. It is fully supported and floor anchored, which makes it suitable for a child, a pet, or an adult.
What happens if someone lets go mid movement?
Movement stops immediately. There is no coasting and no completing the cycle on its own.
Is it safe around children and pets?
Nothing moves unless a person is holding a button, the motion is slow, and it stops the instant the button is released. The bed cannot start on its own.
Are the open and close buttons separate?
Yes. Each direction has its own dedicated button, so there is never a question of which way the bed is about to go.
Can I stop it from moving at all?
Yes. Castaway runs on a standard household outlet, so unplugging it takes the bed out of service entirely until you plug it back in.
Can the bed move on a schedule or by voice?
No. There is no automation, no scheduling, no timers, and no voice control.
Does the bed make noise when it moves?
You will hear a soft mechanical hum while the bed is in motion, and nothing at all when it is at rest.
Can I feel it move while I am lying down?
The motion is slow and even rather than sudden, so it feels closer to being gently carried than to being jostled.
Can I open or close it while I am in bed?
Yes, and most people do. The switch is positioned so you can reach it from the bed without sitting up.
Does Castaway need to be plugged in?
Yes. Castaway plugs into a standard household outlet.
What happens to the nightstands when the bed opens?
They are attached to each bed and travel with it, so your lamp, your book, and your charger stay within reach in every position.
How many mattresses does Castaway use?
Three. Two Twin XL mattresses on the moving platforms, and one 31 inch center mattress on the fixed platform.
Do the two sides have to match?
No, and this is one of the quieter advantages of the design. Each sleeper can choose their own mattress and firmness.
Is the center mattress included?
Yes. One center platform mattress comes with every Castaway. Additional mattresses, or a replacement, can be purchased separately.
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