ComfortMode™ Mattress Assembly and Disassembly Guide

Applies to ComfortMode™ Collection.

View all supported mattresses

ComfortMode™ and ComfortMode™ Lux

 

Learn how to assemble and disassemble your Sleep Number® ComfortMode™ mattress safely and correctly. Whether you are setting up a new mattress, preparing for a move, or moving room to room, this step-by-step guide walks you through the entire process.

 

Before You Start: Important Setup Information

Important: Before plugging in your Core Control™ system, remove the protective cap from the hose connection port.

Time and Help Required

  • Each process typically takes 30 minutes to 60 minutes
  • Two people are recommended for setup and positioning

Power Requirements (King Only)

  • A power splitter with three outlets is required for King mattresses used with an Adjustable Base

 

What This Guide Covers

 

Doorstep Delivery: How to Assemble a ComfortMode™ Mattress

Materials List

Make sure you have all required components before beginning:

  • Mattress
  • Firmness Control System or Core Tech System
  • Remote

Note: It is normal to see small slits on the bottom of the cover. That is by design so air hoses can pass through and connect to air chambers when the bed is used with a Sleep Number base.

Step 1: Set Up the Pump

Connect the hoses and power cord to the pump. Place the pump on the floor at the head of the bed.

Important: 2 pumps can support this bed.

Pump connections for beds purchased early 2026

Core Control System

 

Step 2: Position the Mattress

Remove the mattress from the bag and locate the product (law) label. With two people, place the mattress sleep-surface down, with the head of the mattress at the foot of the bed frame or base.

Position the mattress, upside down on your base, with the head at the foot of the bed.

 

Step 3: Route the Hoses

Adjustable Base

Guide the hoses through the Velcro straps along the base and exit them through the hip opening.

Step 3: Route the Hoses through the base

Mattress Only

Step 1: Open the Mattress Cover

  1. Locate the zipper along the mattress edge and unzip fully.
  2. Fold the cover in thirds toward the side of the bed to expose the foam layer.

Step 2: Connect the air hoses

  1. Remove the white plastic air chamber cap.
  2. Firmly connect the hose to the air chamber.
  3. Repeat for the opposite side of the bed.
Close-up view of where the air hose connects to the air chamber.

Step 3: Route the air hoses

  1. At the head of the bed, locate the horizontal slit in the mattress cover.
  2. Insert the air hoses one at a time through the slit:
    • Blue hose: Right sleeper (white label / tag side)
    • White hose: Left sleeper
  3. Feed enough hose through so each reaches its side without stretching or twisting.
The air hose runs beneath the mattress cover, diagonally from the side of the mattress to the center slit in the cover.

Step 4: Close the Mattress Cover (important safety step)

  1. Zip the mattress cover closed.
  2. Flip the mattress to correct position.
  3. Attach the hose ends to the pump, matching white to white and blue to blue.
  4. Set desired Sleep Number® setting for each mattress side with the Sleep Number® app or remote.

WARNING:

  • To ensure compliance with federal and state flammability requirements, the border wrap must be positioned correctly with the mattress as shown. The border wrap must be positioned over the foam/air chamber and remain flat during zipping.

Mattress Only: To ensure compliance with federal and state flammability requirements, the border wrap must be positioned correctly with the mattress as shown.

Mattress Only Step 4: Close the Mattress Cover

 

Step 4: Secure the Mattress Straps

Skip this step if you do not have an adjustable base.

Insert the mattress straps into the designated slits in the mattress cover.

Step 4: Secure the Mattress Straps

 

Step 5: Flip and Align the Mattress

Skip this step if you do not have an adjustable base.

Flip the mattress right-side up and center it on the base. Ensure the law label is located at the head of the bed.

Flip Comfort Mattress.jpg

 

Step 6: Attach the Mattress to your Sleep Number® Adjustable Base

Skip this step if you do not have an adjustable base.

Complete the base-to-mattress connections on both hips of the bed:

  • Route straps through the base attach plate
  • Snap straps into place at the hips and foot

Strap Orientation

  • Black straps: Point toward the center gap, button opening facing up
  • Light gray straps: Point toward the foot of the bed, button opening facing up

Route Connections.jpg

 

Step 7: Connect the Hoses

Attach the hoses to the mattress. You should feel and hear a click when they are properly connected.

Step 7: Connect the Hoses

 

Step 8: Power and Pair the System

  • Insert two AA batteries into the remote
  • Plug the pump into a power outlet
  • Follow the on-screen prompts to pair the remote

 

Moving Your ComfortMode Mattress: How to Disassemble

Follow these steps when moving or preparing the mattress for transport.

Step 1: Fully Inflate the Mattress

Set both sides of the mattress to 100 firmness using your remote.

 

Step 2: Disconnect the Hoses

Detach the hoses and attach the white closure caps.

 

Step 3: Unclip the Strap System

Skip this step if you do not have an adjustable base.

  • Unclip gray straps at the hips (1 per side) and foot (2 total)
  • Split King models have four foot straps
  • If applicable, unclip black straps at the head of the bed

 

Step 4: Pack for Transport

  • Place the mattress in a protective bag
  • Disconnect and box the pump for safe transport

 

Moving Your ComfortMode Mattress: How to Reassemble

Step 1: Feed hose through base opening at hip.

Skip this step if you do not have an adjustable base.

 

Step 2: Remove white air chamber cap(s) and connect hoses to chamber(s).

  • Push until you hear or feel them click into place.

 

Step 3: Attach mattress to base.

Skip this step if you do not have an adjustable base.

Straps Attach System:

  1. Reconnect the grey straps at the hip (1 per side) and then at the foot (2). Split Kings have four (4) foot straps.
  2. Feed the strap under the bar and pull until the button aligns with its receiver. Press down until the button is connected.
  3. If you have a Split King, stand on either side of the bed and have one person manually lift a decking panel to access the strap snap receiver. Pull the black strap tightly and snap into the snap receiver on the underside of the decking panel. Repeat on the other side.

 

Step 4: Place pump on the floor towards the head of the bed.

 

Step 5: Plug in the power cord for the pump to a power outlet.

 

 

Compatible Base Instructions

The ComfortMode™ mattress is designed to work with compatible bases, including:

Always follow base-specific instructions in addition to this guide for best results.

 

Frequently Asked Questions

How long does it take to assemble a ComfortMode™ mattress?
Assembly typically takes 30 to 60 minutes with two people.

 

Do I need tools to assemble the ComfortMode™ mattress?
No tools are required. All connections are designed to snap or click into place.

 

Where should the law label be located?
The law label must be positioned at the head of the bed once assembly is complete.

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