The deepest stage of sleep is ________ sleep.

Name: The deepest stage of sleep is ________ sleep.
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Stage 4 sleep, also known as delta sleep or slow wave sleep, is the deepest stage of sleep where the brain waves are slowest and most synchronized. During this stage, the body repairs and regenerates tissues, strengthens the immune system, and consolidates memories. It is often the hardest stage of sleep to wake up from and is essential for feeling refreshed and alert the next day.

The Deepest Stage of Sleep Is ________ Sleep