Authors: Amin Hekmatmanesh, Maryam Banaei, Khosro Sadeghniiat Haghighi, Arezu Najafi
Publication date: 2019/1/1
Journal: Acta Medica International

Background: Orientation is a significant factor in architectural design that may affect well-being. Body direction does not change during sleeping, and sleeping is sensitive and affected by environmental factors.

Aims: This neuroarchitecture study aimed to assess the effects of bed orientation on sleep quality to enhance bedroom design.

Materials and Methods: To do so, the effects of earth's electromagnetic field (EMF) on sleep electroencephalography (EEG) signals were evaluated using signal processing techniques. In this cross-sectional study, a total of 21 healthy volunteer participants slept for two consecutive naps, at two rooms with identical interior design and different bed orientations, toward and against earth's EMF in a sleep clinic.

Statistical Analysis: In this experiment, discrete wavelet transform extracted five subfrequencies of EEG data as delta, theta, alpha, beta 1, and beta 2. In addition, the energy signals…