yes most of them sleep at night
No they do not sleep in trees in fact they hardly sleep at all.....
not all of them they all have different sleeping habits. not two snakes are alike.
Yes, snakes do sleep, but they do not have eyelids to close like humans do. Instead, they enter a state of rest where their activity and metabolism slow down. Snakes may rest in hidden places or burrows during their sleeping periods.
Yes they all sleep. Some sleep on a rock with their head above water while others sleep on the bottom of the sea. Like marine mammals they can hold their breath for hours.
Hibernate and sleep
Snakes and sharks.
Yes.
Snakes do not have eyelids, so their eyes are always open.
Yes.They hibernate.
Yes.
Sea snakes can sleep while floating on the surface of the water. They have a special adaptation that allows them to sleep with half of their brain at a time, keeping the other half awake to monitor their surroundings and prevent themselves from drowning. This phenomenon, known as unihemispheric slow-wave sleep, enables sea snakes to rest and remain alert to potential threats at the same time.
Most snakes curl up when they sleep, but not all snakes. Some snakes are arboreal, which means they live in trees. They curl up on a branch to go to sleep. Most other snakes, such as ball pythons, king snakes, and rat snakes seem to like a hiding place when they rest and you will often find them curled up under a rock or log or other out of the way place. However, there are certain very large snakes (think anacondas or Burmese pythons) that just seem to lay straight out in a line. Although I am not certain, I think you would find that these snakes don't have many natural predators so they don't need to hide themselves. Even these huge snakes will try to go to an out of the way place after they have eaten a huge meal, since they are vulnerable for a couple of days right after they have eaten.