I work 12 hour nights, and As a female ... [SEP] I work 12 hour nights, and As a female, my ears are too small for these , making these  hearos too big to stay all the way in the ear ,therefore, if there is no other &#34;white noise&#34; going on-- i.e.--fan, you will hear surroundings. I will finish these out, but will not buy again.