Can HLA-DQ2 help with sleep?

HLA-DQ2 is primarily a genetic marker for celiac disease risk. There is no direct, robust evidence that HLA-DQ2 itself influences sleep. Indirectly, untreated celiac disease can cause symptoms like abdominal discomfort, nutrient deficiencies, or inflammation that may disrupt sleep, but this is speculative and not specifically studied for HLA-DQ2. Other HLA types (e.g., DQB1*0602) are linked to narcolepsy, but not DQ2. A DNA test for HLA-DQ2 cannot provide meaningful insights into sleep quality or disorders. If you have sleep issues, focus on sleep hygiene, stress, and medical evaluation rather than genetics. Evidence: unclear/mechanistic-speculative. Sources: none from provided context.