They can cause you to become reliant on sleeping with earplugs. Our hearing system does not turn off at night, and by using earplugs you may be increasing your night time hearing sensitivity.

I worked for almost 15 years in Audiology and saw many people with issues in part from sleeping with ear plugs.

Most could not sleep without earplugs even in very quiet situations, and some even developed hyperacusis.

For the prevention of hearing-loss due to noise, they have been excellent.