When referring to sleep apnea in dogs there are many similarities to the human symptoms and causes with a few outliers in the bunch. Causes like allergies, obesity, and obstructions may all be the same but some dog obstructions are caused by poor breeding habits that have lead to breathing problems at night.
Allergies can be a cause of sleep apnea in any form (food, seasonal, or skin) as each can lead to obstructions in the dog's snout and throat that cause breathing problems at night. This is an easily fixed scenario as there are solutions already in place to help dog allergies. If you are unsure what to do to help your furry friend with allergies your veterinarian is always a great resource on what steps to take.
Obesity is another problem that can cause dog sleep apnea and is often associated with many other underlying health issues. When obesity becomes a problem sometimes there will be fatty buildup around the throat that can hinder breathing during sleep or even stop breathing altogether. Because the dog is overweight there are also other things that could be hurting your furry friend's health. The only real way to help this long-term is weight loss and this can be a hard thing to accomplish but is extremely beneficial to little FIdo.