what do i need to do to stop sleep-talking?

Answer 1

Talking in your sleep is called 'somniloquy'. It can happen with sleep walking. If you or someone you know is endangering themselves when they sleep walk, then a doctor should be consulted.

Sleep talking is a form of sleep disorder. Most sleep disorders are related to one or more of the following:

stress
drug and alcohol use, including caffeine
bad sleeping routines
depression or anxiety

Try to reduce the stress in your life. Change can be hard, but getting support to work out strategies is a good start.

Try some relaxation techniques. Cut out the drugs and alcohol. This includes caffeine, especially at night. And remember, some tea has more caffeine than coffee.

Get some regular exercise. Try to do it during the day, as late night exercise can cause more sleep problems.
Avoid large meals at night.

Get your routine sorted. Go to bed and get up at around the same time.

Don't do work or read in bed during the day - keep the bed for sleeping.

Try the site below too!

Answer 2

Why do you want to stop? Sleep talking is fun and amusing to other people - unless you are really loud...

Answer 3

The short answer:
Go brain dead.

You talk because you dream.
It shows a vivid imagination.
Accept this.