While most people assume that snakes hibernate during the winter, these cold-blooded creatures can often be seen out and about. However, during extreme temperatures, these animals huddle in places that can protect them from the cold. These hiding spots are also dark and quiet, making them ideal for sleeping. If you’re a pet owner, keeping an eye out for your snakes sleep patterns is essential to their health. You can tell if they’re asleep by their coiled-up position and the fact that they aren’t flicking their tongues in and out. You can also confirm their presence by checking whether they have a brightly-colored brille on top of their head that acts as an eyelid.
Although it’s unclear exactly how long snakes sleep, researchers have found that they usually sleep for at least 16 hours a day. This is a normal part of their sleep cycle and they do it to regulate their metabolism and other vital processes. During sleep, snakes have a slowing heart rate, slower breathing, and lowered responsiveness to stimuli.
It’s not clear whether or not snakes dream, but they certainly can experience a form of unihemispheric sleep similar to dolphins and other aquatic animals. This means that while a snake is sleeping, one half of their brain is still alert, allowing them to watch for predators or prey. This may help them avoid falling into a deep sleep and waking up with a groggy brain.