Where to buy the best quality sleep mask in Warsaw?

The early daylight is bugging me. I need to buy the best sleep mask.

The shop at the airport (the one just through the barrier) sells them. If you aren't planning on travelling, perhaps you know someone who is? Also Amazon stock them.

What is that? a secure area? Ok. How do you exactly translate "sleep mask" in Polish. Maybe i'll ask around. Thank you.

allegro.pl/listing/listing.php?order=m&string=opaska+na+oczy&search_scope=category-1497&bmatch=seng-v11-p-econom-4-moda-0710