Bed airflow and temperature control

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Solution Overview

Problem

Existing bed systems lack effective microclimate control, particularly in regulating temperature and humidity at the mattress surface, which can affect sleep quality.

Innovation Solution

A bed system with a microclimate control subsystem that supplies conditioned air to a mattress, utilizing airflow pads to distribute air and maintain a desired temperature, along with an integrated high airflow zone and air duct system for efficient air circulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conditioned air is supplied to the mattress through airflow pads, then temperature control precision is improved, but device complexity increases

Engineering Contradiction:
Improvetemperature control precisionVSAvoiddevice complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The mattress is divided into multiple independent airflow zones with individual airflow pads, allowing separate temperature control for different body regions. This segmentation enables precise microclimate control while using simple, modular components that can be independently manufactured and assembled.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Airflow pads serve as intermediary components between the air supply system and the mattress surface. These pads distribute conditioned air evenly across the mattress while maintaining simple structural design, bridging the gap between complex climate control requirements and simple implementation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of energy

If air suction is used to drain heat from the mattress system, then cooling efficiency is improved, but energy consumption increases

Engineering Contradiction:
Improvecooling efficiencyVSAvoidenergy consumption
Core Design Contradiction:
Loss of energyVSUse of energy by moving object

Solution Approach 1:

Air suction is applied locally at specific high-heat-generation zones rather than uniformly across the entire mattress. This targeted approach concentrates cooling effort where most needed, improving cooling efficiency while reducing overall energy consumption by avoiding unnecessary air movement in low-heat areas.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The air suction system operates periodically rather than continuously, activating only when temperature thresholds are exceeded. This periodic operation maintains effective heat drainage while significantly reducing energy consumption compared to continuous operation.

Inventive Principle:
Principle #19Periodic action

3Manufacturing precision

If airflow pads are integrated into the mattress structure, then air distribution uniformity is improved, but manufacturing complexity increases

Engineering Contradiction:
Improveair distribution uniformityVSAvoidmanufacturing complexity
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The air distribution system is segmented into multiple independent airflow pads rather than one complex integrated system. Each pad is a simple, standardized component that can be manufactured separately and assembled into the mattress, achieving uniform air distribution through modular repetition rather than complex integrated manufacturing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Airflow pads utilize porous materials that naturally distribute air uniformly across their surface area. This material-based solution achieves uniform air distribution through the inherent properties of the porous structure, eliminating the need for complex manufacturing processes or additional distribution mechanisms.

Inventive Principle:
Principle #31Porous materials

4Manufacturing precision

If multiple airflow zones are created in the mattress, then microclimate control precision is improved, but device complexity increases

Engineering Contradiction:
Improvemicroclimate control precisionVSAvoiddevice complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The mattress is divided into multiple independent airflow zones, each with its own airflow pad and control capability. This segmentation allows different microclimates to be created for different body regions (e.g., cooler zones for head/feet, warmer zones for torso) while using simple, repeatable modular units that minimize overall system complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each airflow zone is designed as a universal, multi-functional module that can independently provide heating, cooling, or air circulation based on local conditions. This universality allows precise microclimate control across multiple zones while using identical standardized components, reducing device complexity through component standardization.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system provides precise microclimate control, enhancing sleep quality by maintaining optimal temperature and humidity levels at the mattress surface, while also promoting comfort and durability.

Implementation Method 1

a microclimate control subsystem configured to supply conditioned air (e.g., heated or cooled air) to a mattress

Methodology Applied
Scientific EffectAir flow:

Implementation Method 2

The material can include three-dimensional structures with elastic polyolefin fibers, such as Qshion material. Other example materials can include a spacer monofilament, reticulated form, and channeling

Methodology Applied
Scientific EffectAir permeability: Permeation

Implementation Method 3

the microclimate control subsystem can draw ambient air from the mattress, thereby conditioning the temperature at the top of the mattress

Methodology Applied
Scientific EffectAir suction: Suction

Implementation Method 4

a heating element mounted in the housing

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 5

a reversible fan mounted in the housing

Methodology Applied
Scientific EffectAir circulation: Convection

Data Source

PatentUS20250151918A1Bed airflow and temperature control
Publication Date: 2025.05.15 SLEEP NUMBER CORP
  • US20250151918A1 patent drawing
  • US20250151918A1 patent drawing
  • US20250151918A1 patent drawing

AI summary

A bed system includes microclimate control capabilities for providing quality sleep experience. The bed system can include a microclimate control subsystem configured to supply conditioned air (e.g., heated or cooled air) to a mattress, or draw ambient air from the mattress, to achieve a desired temperature at the top of the mattress. Utilizing supply of conditioned air to provide air at desired temperature to the mattress system, or utilizing air suction to drain heat away from the mattress system, can provide precise microclimate control at the mattress, thereby permitting conformable sleep.