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You can get custom moulded ear plugs that you mould at home for about 20-30 USD.

https://www.earjobs.com.au/collections/custom-moulded-ear-pl...

They’re not as good as etymotics but a lot comfier.

I wouldn't wear earbuds at night or for long periods of time though, ear wax buildup and whatnot.

I've slept with foam earplugs nearly every night for at least a decade now, and I've never encountered any negative effects, ear wax-related or otherwise.

I've been using 3M plugs for 4/5 years and while it's not super confortable it's much better than not sleeping or be woken up 3 hours earlier than intended (the joy of appartments..). Also most of the dirt in the ears comes from oils in the head that get on the pillow, so in my experience they get less dirty than before.

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