Ohropax wax balls and Mack's Plugs are very suitable because you can form them.
If it has to be soft: Bilsom 303 and ColorPlux are really soft and doesn't disturb when you lie on it at night. Bilsom 303 also ist aviable in 2 sizes.
Highest comfort (even softer, smaller, reusable and with exchangeable filters) provides SleepSoft+.
Information: If you want to know more about "volume" and "noise" we recommend our special page.
Please keep in mind: hearing protection never can completely "switch off" disturbing noise. Hearing protection dampens sound effectively.