Stage 1 Light Sleep

Stage 1 is the beginning of the sleep cycle and is a relatively light stage of sleep. Your eyes are closed but it s easy to wake you up. This period of sleep lasts only a brief time around five to 10 minutes.

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Sleep disorders nrems stage 1 and sometimes stage 2.

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. Here you are in light stage sleep which means that you re somewhat alert and can be easily woken. 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. Stage 1 of light sleep is the lightest sleep stage and phases of stage 1 sleep are often quite brief. Heartbeat and breathing slow down further. Sleep stages 1 2 and rem consist of light sleep while 3 and 4 comprise deep sleep.

During stage 1 you drift from being awake to being asleep. Stage 2 is where a lot of the action happens including significant changes to brain activity. In stage 1 the brain produces high amplitude theta waves which are very slow brain waves. See deep sleep stage.

In addition stage 1 sleep involves a marked decrease in both overall muscle tension and core body temperature. This phase may last for 5 to 10 minutes. Stage 1 sleep is a transitional phase that occurs between wakefulness and sleep the period during which we drift off to sleep. Almost all light sleep is stage 2 sleep.

During this stage which is also fairly light the brain produces sudden increases in brain wave frequency known as sleep spindles. You are in light sleep. It s a non rem form of sleep and differs from heavy deep sleep of stage 3. This is a light nrem sleep that doesn.

It s during this stage of sleep that people often indulge in brief catnaps stage two. 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. This phase may last for 5 to 10 minutes. Stage 1 makes up a small fraction of total sleep time about 3 and is mainly a transition between waking and stage 2.

During this time there is a slowdown in both the rates of respiration and heartbeat.

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