How Do Alligators Sleep?

Alligators are powerful predators that tend to lurk about in shallow waters and marshlands. An adult male American alligator can weigh up to 1,000 pounds. Due to their size, you may wonder how alligators sleep.

Alligators sleep on their stomachs. During the warmer months, they tend to sleep on rocks or clearings near waterways where they can soak up the sun. In winter, alligators often dig holes in the mud where they sleep during their dormancy phase.

The sleeping habits of alligators depend on the season, species, gender, and age of the alligator. 

American Alligators Sleep On Their Stomachs In The Open

Alligators sleep on their stomachs. They may sleep out in the open under the sun or in a hole in the mud. They may also sleep alone or in groups. 

Only two species of alligators currently exist – the American alligator and the Chinese alligator. Both species are nocturnal and get most of their sleep during the day.

The American alligator is mostly found in Florida and Louisiana. They sleep in groups near ponds, marshes, rivers, lakes, swamps, and wetlands. They come out during the day and rest on their stomachs on rocks or grassy areas.

As alligators are at the top of the food chain in their habitat, they do not need to seek shelter for protection from other animals. 

Alligators Sleep In Holes To Maintain A Comfortable Body Temperature

American alligators sleep in the open under the sun throughout most of the year. As the winter weather approaches, they dig holes called “gator holes.” The holes are dug in muddy areas near waterways. 

Alligators enter a phase of dormancy during the colder weather. They dig a gator hole to protect against extreme weather conditions. 

The Chinese alligator is found along the Yangtze River. Only a few dozen Chinese alligators may exist in the wild, making the species extremely endangered. It is smaller compared to the American alligator and more likely to be found sleeping in groups.

Chinese alligators also dig holes. Instead of sleeping in the holes during colder weather, Chinese alligators sleep in their holes most of the year. Chinese alligators also retreat to their holes when humans are nearby.

Chinese alligators stay in their tunnels for about six to seven months out of the year. During the warmer weather, they still use their holes to deal with changes in the weather. They also retreat to their holes when humans are nearby.

The holes are more complex compared to the burrows made by American alligators. Chinese alligators dig extensive tunnels with multiple entrances and chambers. They burrow near the banks of streams and ponds. The large tunnel structures can house multiple alligators. They often sleep during the day and come out at night to hunt. 

Alligators Sleep To Conserve Energy And Control Their Body Temperature

As with most mammals, alligators need sleep to restore their energy. Alligators use less energy during dormancy, which allows them to sleep for much longer periods of time.

The sleeping habits of alligators also depend on the weather. Alligators use sleep to regulate their body temperature. On cool summer mornings, alligators bask in the sunlight. During colder weather or extreme heat, they burrow into holes.

Alligators do not have sweat glands. They are cold-blooded, which means that they cannot regulate their own body temperature. Their body temperature changes with the temperature of the surrounding environment.

The sunlight helps keep alligators warm. Burrowing into holes offers protection from very hot and very cold weather.

Alligators Often Sleep In Groups During the Warmer Months

Alligators are social creatures and often congregate in groups. They eat and sleep in groups and are often found basking in the sun. 

The smaller alligators in the group are more social compared to larger alligators. The largest of the group is more solitary. They may sleep on the outskirts of the congregation to keep an eye on everything.

Large male American alligators are the most solitary and territorial. They typically avoid contact outside of the mating season, which occurs in April and May. 

Female alligators live and sleep in a small area. Male alligators can occupy areas up to two square miles. Young alligators stay in the area where they hatched and remain under the protection of their mothers for two to three years.

Chinese alligators are smaller compared to American alligators and more likely to be found in large congregations. However, instead of basking in the sun in groups, Chinese alligators spend more time sleeping in holes.

Female Alligators Sleep With Their Nests 

After breeding season, female alligators build nests. Female alligators sleep and eat near the nest until the eggs hatch. They continue to protect the young alligators until maturity.

The nests are built in marshy areas with lots of vegetation. Plants are used to build the nest. Nests can measure up to 10 feet in diameter and two to three feet high. 

Female alligators lay about 35 to 50 eggs per season. The eggs are covered with vegetation, which keeps the eggs warm during the incubation period.

The incubation period lasts about 65 days. The young alligators start making high-pitched noises from within their eggs. The mother then removes the nesting material. Newly hatched alligators live and sleep together in groups called pods.

Why Do Alligators Sleep with Their Mouth Open?

Alligators sleep with their mouth open to stay cool on hot days because they do not have sweat glands. As with dogs, alligators leave their mouth open as a cooling mechanism. 

Leaving the mouth open helps keep the alligator from overheating thanks to evaporation. The wet inside of the alligator’s mouth is exposed to the air, which allows moisture to evaporate. 

Do alligators sleep underwater?

Alligators sleep for short periods of time while submerged or partially submerged. An alligator can stay submerged for up to 2 hours if they are resting, but they don’t sleep underwater all the time.

Alligators also sleep on the shore and in various different places. Alligators also dig hollows in the mud to sleep in, allowing themselves to be partially in the water and partially on the shore.

Do alligators close their eyes when they sleep?

Yes, Alligators do close their eyes when they sleep. However, they have been known to sleep with one eye open


Alligators sleep on their stomachs. They lay in the sun to stay warm on cool summer mornings and burrow into holes to protect against extreme cold and heat. On hot days, alligators sleep with their mouth open to cool off. 

Male alligators sleep alone and protect territories up to two square miles in size. Female alligators and juvenile alligators sleep in smaller areas and groups.