Deep Sleep

Useful to Know About Deep Sleep:

Deﬁnition: Deep sleep, also known as slow-wave sleep (SWS) or the N3 stage, is the phase of sleep associated with the most restorative processes. This is the phase where the body performs most of its physical recovery, including muscle and tissue repair, as well as immune system strengthening.

Characteristics:

Slow brain waves (delta waves)

Reduced heart rate and blood pressure

Minimal muscle activity and eye movements

Difficult to wake from; people awakened during deep sleep may feel confused or groggy.

Recommended levels:

Adults should aim for 15-25% of total sleep time in deep sleep.

For an 8-hour night, this equals approximately 1.2-2 hours of deep sleep.

Age-related changes:

The amount of deep sleep naturally decreases with age.

Children and teenagers often get more deep sleep than adults, which is essential for their growth and development.

Health signiﬁcance:

Important for physical recovery, including muscle renewal and the repair of injuries.

Strengthens the immune system, making the body better equipped to ﬁght infections.

Contributes to memory consolidation by reinforcing information learned during the day.

Regulates hormone balance, including the production of growth hormone, which is important for both children and adults.

Measurement: The Inspiring® smart ring estimates deep sleep based on factors such as heart rate variability, movement, and other physiological parameters. This provides a detailed overview of how much deep sleep you get each night, allowing you to monitor changes over time.