Sleep Phase Selection Using Physiological Feedback and Sound Guidance

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Solution Overview

Problem

Existing sleep improvement devices primarily focus on providing white noise, nature sounds, or music on a timer, but they do not effectively guide users into optimal sleep phases or wake them at the perfect time for enhanced rest and refreshment.

Innovation Solution

A system that utilizes a physiological monitor to detect the user's current sleep state, determines environmental factors, and adjusts conditions such as sounds, odors, tactile outputs, and environmental settings to guide the user into optimal sleep phases and wake them at the most refreshing time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional white noise or music devices are used to help users sleep, then users can block out background sounds and fall asleep, but the system cannot guide users into optimal sleep phases or wake them at the most refreshing time

Engineering Contradiction:

Improvesleep qualityVSAvoidsleep phase information

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The system continuously monitors physiological parameters (heart rate, respiratory rate, body temperature) and uses this feedback to detect sleep phases and dynamically adjust environmental conditions. This closed-loop feedback mechanism enables the system to identify optimal sleep phases and wake times based on real-time physiological data, resolving the information loss problem of traditional devices.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent replaces simple timer-based mechanical control with physiological monitoring and automated decision-making systems. Sensors detect biological signals, and a processing system analyzes these signals to determine sleep phases, substituting the mechanical timer with an intelligent system that adapts to individual physiological patterns.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If the system continuously monitors physiological parameters and adjusts environmental conditions, then optimal sleep phases can be achieved, but device complexity increases

Engineering Contradiction:

Improvesleep phase guidance accuracyVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system integrates multiple functions into a single device: physiological monitoring, sleep phase detection, environmental sensing, and conditional control. By making the sleep system multi-functional, the patent reduces the need for separate devices while achieving accurate sleep phase guidance, thus managing complexity through consolidation rather than proliferation of components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system automatically monitors physiological parameters, determines sleep phases, and adjusts environmental conditions without requiring user intervention. This self-service capability reduces operational complexity for users while maintaining high reliability in sleep phase guidance through automated physiological-based control.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12315615B2Optimal sleep phase selection system

Publication Date: 2025.05.27 DP TECHNOLOGIES INC

AI summary

A sleep sensing system comprising a sensor to obtain real-time information about a user, a sleep state logic to determine the user's current sleep state based on the real-time information. The system further comprising a sleep stage selector to select an optimal next sleep state for the user, and a sound output system to output sounds to guide the user from the current sleep state to the optimal next sleep state.