This next stage of non rem sleep is a period of light sleep before you enter deep sleep and it lasts for roughly 25 minutes.
Stage 1 light sleep.
Light sleep is the term for sleep that falls into the categories stage 1 and stage 2.
This is the sleep that s a little more choppy shallow not restful says michael grandner md director of the sleep and health research program at the university of arizona in tucson and a fitbit sleep consultant.
During this time there is a slowdown in both the rates of respiration and heartbeat.
Stage 2 is where a lot of the action happens including significant changes to brain activity.
Here you are in light stage sleep which means that you re somewhat alert and can be easily woken.
Sleep disorders nrems stage 1 and sometimes stage 2.
This phase may last for 5 to 10 minutes.
During this stage which is also fairly light the brain produces sudden increases in brain wave frequency known as sleep spindles.
During stage 1 you drift from being awake to being asleep.
Stage 1 makes up a small fraction of total sleep time about 3 and is mainly a transition between waking and stage 2.
In addition stage 1 sleep involves a marked decrease in both overall muscle tension and core body temperature.
Stage 1 sleep is a transitional phase that occurs between wakefulness and sleep the period during which we drift off to sleep.
Stage 1 is the beginning of the sleep cycle and is a relatively light stage of sleep.
Stage 2 sleep on the other hand makes up roughly half of a typical night of sleep.
Stage 1 can be considered a transition period between wakefulness and sleep.
You are in light sleep.
Stage 1 of light sleep is the lightest sleep stage and phases of stage 1 sleep are often quite brief.
It s a non rem form of sleep and differs from heavy deep sleep of stage 3.
Your eyes are closed but it s easy to wake you up.
See deep sleep stage.
It s during this stage of sleep that people often indulge in brief catnaps stage two.
This phase may last for 5 to 10 minutes.
In stage 1 the brain produces high amplitude theta waves which are very slow brain waves.
Heartbeat and breathing slow down further.
Almost all light sleep is stage 2 sleep.