How can I reduce the risk of scratching my head when I'm asleep?

If you have itchy scalp that is causing you to scratch your head during sleep try to reduce the source of the itchy scalp such as adding hair fiber and sticky sprays.  You can also discuss this with your doctor.

You said you're putting a lot of product in your hair now. First try not putting product in your hair and see if the scratching persists.  another option is to wear a scarf or hat when you sleep to avoid scratching your head.

Hi there, you can reduce this sensation by taking an anti-histamine before sleeping. I tend to recommend Piriton which you can buy over the counter in any pharmacy. This not only helps you to stop itching but also helps you to sleep and I often recommend this medication to my transplant patients if they are worried.