While unfortunately your dream of owning a talking dog may never come true, there are still plenty of ways for you and Fido to communicate. Your pup can recognize different tones, volumes, and even words that you speak — with proper training. In turn, you have developed a way of understanding them.

Most pet owners have developed their own way of communicating with their dogs. Your furry friend can often tell by the tone of your voice when you’re praising or reprimanding them, and you know by those big puppy-dog eyes that they want their share of tonight’s dinner. Even without words, you and your four-legged friend have an implicit understanding of each other. In fact, a well-trained dog who has learned commands by a professional trainer is the best way to enjoy Fido.

But how often do you pay attention to your dog while they sleep? Aside from noticing from their cute sleep-running, many pet owners don’t look to their dog’s sleeping position for insights. However, there is much to be learned from how your pooch sleeps. Here are a few of the most important positions to watch for.

Curled Up

If your dog is sleeping curled up with their nose tucked in, they may be cold or anxious. Each dog breed will have a different preferred temperature, depending on their size and coat. In general, dogs prefer temperatures between 68 and 78 degrees. Keep an eye on your pooch to make sure they aren’t too cold in the AC or during winter months.

On Their Paws

If your dog sleeps on their paws or belly rather than on their side, this could be a sign that they aren’t fully comfortable in their environment. Dog’s muscles cannot fully relax with their paws underneath them, so this is a way for them to rest while remaining able to jump away from danger at a moment’s notice. While your pup may only be in for a light doze, if they’re sleeping mainly like this, it may be time to clear animals or kids from their area and help them feel more comfortable.

Belly Up

If your dog sleeps with their belly in the air, this is a great sign. Their bellies are vulnerable areas, so this means they trust you completely. You’ve done a great job as a pet owner in loving and training them. Keep an eye out if they’re sleeping like this on a hot day outside or while panting, as they may also be sleeping like this to cool off. The pads of their paws contain sweat glands that allow them to regulate body temperature.

It’s important to pay attention to how your pet is sleeping so that you can give them all the care they need and deserve. Check out this infographic below by Sleep Advisor for more insights into what your pet’s sleeping position means about them.