Layered Mattress Component for Cooling and Bottom-Out Support
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Solution Overview
Problem
Traditional foam mattresses suffer from poor thermal comfort due to restricted airflow and inadequate support, leading to heat retention and 'bottoming out' issues, where weight compaction results in loss of resilience and hard feel.
Innovation Solution
A layered mattress design incorporating a high thermal conductivity foam layer, gel foam layers with phase change materials, and a foam core with gel discs to enhance airflow, heat dissipation, and progressive support, ensuring better body conformance and temperature regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional closed cell foam is used, then structural integrity is maintained, but thermal comfort deteriorates due to restricted airflow and poor heat transfer
Solution Approach 1:
The mattress is divided into multiple foam layers with different cell structures. The top layer uses open cell foam for thermal comfort and airflow, while lower layers use closed cell foam for structural support. This segmentation allows each layer to perform its specific function optimally without compromising the other.
Solution Approach 2:
The patent combines different foam materials with distinct properties into a composite layered structure. Open cell foam provides thermal regulation and breathability, while closed cell foam provides durability and support. This composite approach resolves the contradiction by integrating materials that individually address different requirements.
2Reliability
If traditional foam is used, then manufacturing simplicity is maintained, but support performance deteriorates due to bottoming out and poor body conformance
Solution Approach 1:
The support system is segmented into multiple layers with progressively different firmness levels. The softer top layer conforms to body contours, while firmer lower layers provide foundational support. This prevents bottoming out by distributing weight across multiple layers rather than relying on a single foam type.
Solution Approach 2:
Different regions of the mattress have different foam properties tailored to specific needs. The top layer has softer, more compliant foam for body conformance, while lower layers have firmer foam for support. This local differentiation of material properties optimizes both comfort and support performance.
3Temperature
If single-layer foam is used, then device complexity is minimized, but thermal dissipation deteriorates due to restricted airflow
Solution Approach 1:
The mattress is segmented into multiple layers with the top layer specifically designed with open cell structure to facilitate airflow and heat dissipation. This segmentation allows the top layer to focus on thermal regulation while lower layers focus on support, resolving the contradiction between thermal performance and structural requirements.
Solution Approach 2:
The top layer uses open cell foam material with high porosity to enable airflow through the mattress. This porous structure allows heat to escape and air to circulate, improving thermal comfort without requiring active cooling systems.
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 solution provides improved thermal comfort and support by facilitating better airflow, heat dissipation, and progressive support, preventing 'bottoming out' and maintaining comfort throughout the night.
Implementation Method 1
a first high thermal conductivity foam layer
Implementation Method 2
a second foam layer having at least one gel portion... a dual foam layer disposed below the bilayer foam topper. The dual foam contains a phase change material
Implementation Method 3
Incorporation of new materials into mattresses that improve air flow and cooling through better heat dissipation is desirable
Data Source
AI summary
A bedding component includes a top portion having a gel foam, a middle portion having a foam layer with at least one gel disc, and a bottom portion have a foam core.