how many minutes of deep sleep should you get

Adults typically need about 55 to 110 minutes of deep sleep each night, which corresponds to roughly 13% to 23% of the recommended 7 to 9 hours of total sleep per night. Deep sleep is crucial for physical restoration, including tissue repair, muscle and bone building, and immune system strengthening. As people age, the amount of deep sleep tends to decrease slightly, with older adults needing around 45 to 90 minutes of deep sleep. Overall, aiming for about 1 to 2 hours of deep sleep per night is ideal for most adults to feel rested and support overall health.