The condition is due to narrowing or blockage of the upper airway during sleep. Sleep apnea in infants can be serious even fatal. 5 Plentiful Cool Tips Permanent Snoring Solution Infant Sleep In adults the most common cause of obstructive sleep apnea is excess weight and obesity which is associated with soft tissue of the mouth and throat. Infant sleep apnea causes . During the first month after birth it occurs in 84 percent of infants who weigh less than 2 2 pounds. If left untreated it could lead to serious complications such as a slow heart rate and poor growth. The infant even may lose consciousness and need to be resuscitated. Sleep apnea is a potentially dangerous breathing disorder observed in babies while they sleep. Partial reductions in breathing that occur during an infant s sleep are called hypopneas likewise complete pauses in breathing are called apneas here we are dealing with symptoms causes and treatments. Obstructive sleep apnea and central sleep apnea. ...