GCSE - Stages of Sleep

This is the lightest stage of sleep...

• Stage 1

• Stage 2

• Stage 3

• Stage 4

This is the deepest stage of sleep...

• Stage 1

• Stage 2

• Stage 3

• Stage 4

• REM sleep

What order do the brain waves show during sleep?

• Alpha, Theta, Delta

• Theta, Alpha, Delta

• Delta, Alpha, Theta

• Alpha, Delta, Theta

During REM sleep no noise from the outside world is processed, this is known as...

• A sensory blockade

• Muscle paralysis

• Movement inhibition

• Rapid eye movement

During REM sleep your brain is...

• showing similar levels of activity to when you are awake

• is preventing your body from moving

• sending signals to the top of your brain

• showing delta waves

Your temperature starts to drop during this stage.

• Stage 1

• Stage 2

• Stage 3

• Stage 4

• REM Sleep

How long do we spend dreaming?

• 30 minutes

• 1 hour

• 2 hours

• 3 hours

Adults need around...

• 5-6 hours sleep

• 6-7 hours sleep

• 7-8 hours sleep

• 8-9 hours sleep

Babies spend approximately ___ of their time dreaming.

• 20%

• 30%

• 40%

• 50%

We go through approximately 5 cycles of sleep, each lasting approximately __ minutes

• 70

• 80

• 90

• 100