en Epidemiology Original Article <div style="text-align: justify;"><span style="font-size:11pt"><span style="line-height:150%"><span sans-serif="" style="font-family:Calibri,"><b><span new="" roman="" style="font-family:" times=""><span style="color:black">Background: </span></span></b><span new="" roman="" style="font-family:" times=""><span style="color:black">There is no clear consensus on the effect of natural sounds on elderly sleep quality, as one of the most common causes of disability in them. This study aimed to determine the effect of natural sounds on elderly sleep quality. </span></span><br> <b><span new="" roman="" style="font-family:" times=""><span style="color:black">Material & Methods:</span></span></b><span new="" roman="" style="font-family:" times=""><span style="color:black"> In this randomized controlled trial, 100 elderly were selected based on the inclusion criteria from comprehensive health care centers and then divided into two equal groups by simple random sampling method. The intervention group listened to the natural sounds in MP3 format every night for 2 weeks, 30 minutes before going to bed, through mobile phone and hands-free. The control group did not receive any intervention. The PSQI was measured before and after the intervention. Data analysis was done in SPSS software (version 22) applying the Shapiro-Wilk test, Chi-square, and Fisher Exact test, Independent Samples-t test, Wilcoxon Signed Ranks test, and Mann Whitney U test. A confidence level of 95% was considered.</span></span><br> <b><span new="" roman="" style="font-family:" times=""><span style="color:black">Results:</span></span></b><span new="" roman="" style="font-family:" times=""><span style="color:black"> In the intergroup comparison, in the baseline, groups were the same in terms of the total sleep quality score as well as other components (P>0.05). After the intervention, there was a significance difference between the two groups in terms of global sleep quality (P=0.048), sleep latency (P=0.001), habitual sleep efficacy (p= 0.012), and sleep disturbance (p=0.01).</span></span><br> <b><span new="" roman="" style="font-family:" times=""><span style="color:black">Conclusion:</span></span></b><span new="" roman="" style="font-family:" times=""><span style="color:black"> Based on the our results, natural sounds could improve the sleep quality in the elderly.&nbsp;</span></span><span style="font-size:12.0pt"><span style="line-height:150%"><span style="font-family:"Times New Roman","serif""></span></span></span></span></span></span><br> &nbsp;</div> Sleep Qualities,Elderly,Sound, 213 219 http://johe.rums.ac.ir/browse.php?a_code=A-10-270-4&slc_lang=en&sid=1 Ali Ansari Jaberi shibonraf@yahoo.com 22400319475328460010632 22400319475328460010632 No Instructor, Dept. of Psychiatric and Mental Health Nursing, Social Determinants of Health Research Center, School of Nursing and Midwifery; Rafsanjan University of Medical Sciences, Rafsanjan, Iran. Rafsanjan University of Medical Sciences Zohreh Sahebi sahebizm@gmail.com 22400319475328460010633 22400319475328460010633 No Instructor, Dept. of Midwifery, School of Nursing and Midwifery, Geriatric Care Research Center, Rafsanjan University of Medical Sciences. Rafsanjan, Iran. Rafsanjan University of Medical Sciences Tayebeh Negahban Bonabi negahbant@yahoo.com 22400319475328460010634 22400319475328460010634 Yes Assistant Prof., Dept. of Community Health Nursing, Social Determinants of Health Research Center, School of Nursing and Midwifery, Rafsanjan University of Medical Sciences, Rafsanjan, Iran. Rafsanjan University of Medical Sciences Pouran Allahbakhshinasab p_allahbakhshinasab@rums.ac.ir 22400319475328460010635 22400319475328460010635 No Instructor, Dept. of Midwifery, School of Nursing and Midwifery Geriatric Care Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran Rafsanjan University of Medical Sciences