Looking for renter friendly soundproofing ideas to minimize outside noise

I have occasional insomnia and from 1:00am to 3:00 am it seems like that's when snow is removed from the roads and sidewalks and parking areas around my apartment building. For additional context to get an idea of how loud it is...I'm on the 6th floor and I'm hard of hearing and use hearing aids...but I don't wear them to bed and it sounds as loud as if I were on the first floor with it right outside my window.

I cannot wear earplugs because it'd be extraordinarily unsafe of me to do so since I'm hard of hearing and on top of that I'm a very deep sleeper who sleeps through alarm clocks built for hard of hearing people...so if I had earplugs in and was asleep I'd possibly sleep through a fire alarm.

The loud noises outside every night of winter makes it even harder for me to fall asleep.

Anyone got any ideas? Ideally, I'd like to not block out my windows with foam because I have plants using the sunlight.

Thanks.