Background: Diet is an important modifiable factor that may influence sleep quality, with several foods, nutrients, and dietary patterns reported to affect sleep-related outcomes. However, evidence regarding the relationship between Halal dietary practices and sleep quality remains limited. This study aimed to determine the association between the frequency of consumption of Halal-certified food groups and sleep quality among adult Filipino Muslims. Methods: An analytical cross-sectional study was conducted among 323 adult Filipino Muslim members of the Greenhills Muslim Traders Association in San Juan City, Philippines. Participants were selected using purposive sampling based on predefined inclusion and exclusion criteria. Sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI), while dietary intake was measured using a structured questionnaire on the frequency of consumption of Halal-certified food groups. Descriptive statistics were used to summarize participant characteristics, dietary patterns, and sleep quality. Multivariable logistic regression analysis was performed to determine the association between Halal-certified food group consumption and sleep quality. Results: Halal-certified grain products were the most frequently consumed food group (mean = 2.39), while Halal-certified combination foods were the least frequently consumed (mean = 1.21). The mean global PSQI score was 4.62, indicating generally good sleep quality, and 67.8% of participants were classified as good sleepers (PSQI ≤5). Sleep efficiency had the highest mean component score (1.16), whereas subjective sleep quality had the lowest (0.00). Multivariable logistic regression showed no significant association between the frequency of consumption of most Halal-certified food groups and sleep quality (p > 0.05). However, more frequent consumption of Halal-certified combination foods was significantly associated with lower odds of good sleep quality (OR = 0.697, 95% CI: 0.529–0.919, p = 0.010). Conclusion The frequency of consumption of most Halal-certified food groups was not significantly associated with sleep quality among adult Filipino Muslims. However, increased consumption of Halal-certified combination foods was associated with lower odds of good sleep quality. Further studies should explore other dietary and behavioral factors that may influence sleep outcomes.
Sleep quality ;

Objective: The aim of this study was to determine the comorbid sleep disorders on Polysomnography (PSG) of patients complaining of insomnia symptoms. Methodology: This is a retrospective study among patients who underwent diagnostic and split-night polysomnography from April 2014 to February 2019. Those who had at least one of the following insomnia symptoms of difficulty initiating sleep, difficulty maintaining sleep and early morning awakening with or without a history of sleep aide use were identified as patients with insomnia. Polysomnography sleep parameters and outcome were tabulated and statistical analysis was done using SPSS v 20.0. Results: Out of the 302 patients who were included in the study, 34.4% of subjects had a family history of sleep disorder and 70.4% had a history of sleep aide use. Among the medical comorbidities, 47.7% of the subjects were diagnosed with hypertension while 10.65% were diagnosed with psychiatric disorder. Most of the patients complained of both difficulty initiating sleep and early morning awakening. PSG sleep parameters showed that patients did not experience excessive daytime sleepiness or delayed sleep latency. On the other hand, poor sleep efficiency could be due to increased arousal index. Half of the patients turned out to have severe obstructive sleep apnea (52%) while 2.3% of the patients had periodic limb movement disorder. Among those diagnosed with severe OSA, 53.3% had a history of sleep aide use. Conclusion The study showed the importance of screening patients with insomnia for underlying comorbid sleep disorders. The American Academy of Sleep Medicine (AASM) treatment guidelines for chronic insomnia emphasized the need to have a high index of suspicion for this population in order to recommend diagnostic procedures such as polysomnography. Diagnosing a patient with insomnia to have an underlying sleep apnea and/or periodic limb movement disorder would change the course of management among patients with chronic insomnia and eventually avoid prescribing medications that could actually worsen the patient’s condition.
Sleep Initiation and Maintenance Disorders ; Sleep Wake Disorders ; Polysomnography ; Comorbidity