Supine body position (lying face up) Large tonsils,long soft palate or uvula A tongue that relaxes too much during sleep Being overweight Nasal congestion from colds, allergies or deformities of cartilage within the nose Menopause Consuming alcohol, medication or tobacco products within six hours of going to sleep Hypothyroidism Features: Prevents Snoring, Sleep Apnea Dry-Mouth. Manufactured under strict quality control and medical grade materials. Slit design for keeping nasal hair to keep foreign and unwanted particles from entering the lungs Advanced Conical shape makes it feel very comfortable in the nose. Reusable each lasts up to 1 Year