Why do dogs let out a big sigh before sleeping?

They’re tired Similar to the relaxation sigh, dogs may let out a sigh when they’re gearing up to go to sleep for the night. The sigh may help them unwind, points out Dr. Woodnutt. Or it may be part of their own little sleep-routine.

Why does my dog do a deep sigh?

Dogs can sigh for a variety of reasons, but the main reason they sigh is to signal that they are relaxed. However, deep and frequent sighing can indicate that your pet is in pain or suffering from illness. If your dog is sighing, it usually means he’s really content and relaxed.

Why does my dog sigh when falling asleep?

If your dog is gearing up for a night of sleep — or perhaps even a lazy afternoon nap — she might just sigh or groan as she prepares to doze off. You might also notice the sighing accompanying other pre-sleeping behaviors — think stretching out. In canine speak, a sigh frequently means, I’m absolutely exhausted.