“…Some studies have reported that increasing duration of dialysis, physical health, co-morbidities, burden of kidney disease, sexual function, dyspnea, pain, itching, mean corpuscular volume, serum albumin, and diabetes mellitus worsen the quality of sleep [2,3,9,10]. However, contradictory studies are also available that suggest that quality of sleep in MHD patients is not related to age, gender, biochemical parameters, and other factors mentioned above [4,6].…”