What kind of seizure causes you to feel like are suddenly under water lose the use all muscles completely limp usually blackout and then need sleep for hours after recover?

Atonic seizures, also known as drop attacks or astatic seizures, are characterized by a sudden loss of muscle tone and consciousness, causing a person to fall to the ground and appear limp. These seizures may last for a few seconds to a few minutes and can be followed by drowsiness or sleep.

Other signs and symptoms of atonic seizures may include:

- Brief episodes of unconsciousness

- Muscle stiffness

- Jerking movements

- Difficulty breathing

- Loss of bladder control

- Tongue biting

Atonic seizures can be very dangerous, as they can cause falls and head injuries. Anyone with symptoms of an atonic seizure should seek immediate medical attention.

A tonic-clonic seizure is characterized by a loss of consciousness, followed by muscle stiffness (tonic phase) and then jerking movements (clonic phase). These seizures can last for 1 to 3 minutes and are often followed by a period of confusion and drowsiness.