Yes, the signs of sleep apnea can change from night to night based on a number of things. Obstructive sleep apnea (OSA), which is the most common type, can be affected by how you sleep. For example, when you sleep on your back, your symptoms may get worse because gravity makes it easier for your airway to close. Lifestyle choices like drinking alcohol, taking sedatives, or even having... https://www.medzsquare.com/au/modalert-200