The present invention refers to a method for ore or both of improving sleep in a subject and treating at least one sleep problem in a subject. The method comprises administering to the subject an edible lipid composition which comprises a vegetable-derived fat source, wherein the fat source is a triglyceride fat source comprising triglycerides with 15-55% palmitic acid moieties out of the total fatty acids, and wherein the level of palmitic acid moieties at the sn-2 position of the glycerol backbone is at least 30% of total palmitic acid.