Very Quick
"Surprised and pleased that they keep my ears from getting too chilled in the winter months, especially since I do not have heat except for a space heater, and I don't run them when I am asleep for safety reasons.""" then you are likely reading a review from someone who: 1) has an ear canal that is too big for these to make a good seal, or, too small to insert (in which case it's their responsibility to research/buy ear plugs better suited to their larger/small ear canal) 2) doesn't know how to properly insert these into their ear (but thinks they do)."
"Foam is easy to shape and place into ear where it expands."
"As for comfort: not the best when fitted properly, in the sense that they cause my ears to ache slightly, but that could just be me; my ears are either especially sensitive or oddly shaped, because I've found that in-ear headphones and, more relevantly, other earplugs also cause these aches."
"* They didn't block my husband out!"
"These earplugs fall apart after only a couple uses if you do this, and I've never had this issue with other earplugs I've bought (admittedly pricier ones that only come with 1-5 pairs)."
Mack's Ultra Soft Foam Earplugs, 50 Pair - 32dB Highest NRR, Comfortable Ear Plugs for Sleeping, Snoring, Work, Travel and Loud Events (Click to Compare Deals)
Quick
"I have tiny ear canals, and some of these soft foam earplugs cause discomfort after a few hours, which then cause me to wake up again... Thinking that if they were a bit shorter it would likely not extend out so far from my ears as I am a side-sleeper, I experimented a bit to resolve this issue... Surprised and pleased that they keep my ears from getting too chilled in the winter months, especially since I do not have heat except for a space heater, and I don't run them when I am asleep for safety reasons.""" then you are likely reading a review from someone who: 1) has an ear canal that is too big for these to make a good seal, or, too small to insert (in which case it's their responsibility to research/buy ear plugs better suited to their larger/small ear canal) 2) doesn't know how to properly insert these into their ear (but thinks they do)... Perhaps they won't block ENOUGH of the sound to your liking, but to claim they don't block ANY sound means you're claiming that the volume is just as loud with the ear plugs in as it is when they are out... I was ignorant for the longest time about the proper way to insert ear plugs until I saw the video that Mack's has here on the product page, but even doing it wrong with them hanging halfway out my ear, they still worked just fine."
"They aren't quite perfect, and some especially loud snores can get through, but not so much that it becomes a problem. I actually mainly need these because my grandmother, who's slowly losing her mind (literally), often disrupts our--the rest of the family's--sleep by waking us up in the middle of the night, repeatedly calling out names and whatnot... As for comfort: not the best when fitted properly, in the sense that they cause my ears to ache slightly, but that could just be me; my ears are either especially sensitive or oddly shaped, because I've found that in-ear headphones and, more relevantly, other earplugs also cause these aches."
"The problem I have is that usually instructions for fitting earplugs best so that they don't fall out is to twist the earplugs while you squish them before inserting into the ear. These earplugs fall apart after only a couple uses if you do this, and I've never had this issue with other earplugs I've bought (admittedly pricier ones that only come with 1-5 pairs). If you just squish them and don't twist, they don't fall apart, but I find that they don't stay in as well this way (especially if you're sleeping with them in)."
Less Quick
"* Living next to railroad tracks that currently carry 50 trains a day, I've had to do something about the train whistles that jolt me awake at 1:00 a... I have tiny ear canals, and some of these soft foam earplugs cause discomfort after a few hours, which then cause me to wake up again. Sometimes, half-asleep, I must be pulling them out because I frequently kept finding one or both of them under the blanket or on the floor. Thinking that if they were a bit shorter it would likely not extend out so far from my ears as I am a side-sleeper, I experimented a bit to resolve this issue... Usually can get 2 nights worth, and I usually only put it in the ear that I am not sleeping on... Surprised and pleased that they keep my ears from getting too chilled in the winter months, especially since I do not have heat except for a space heater, and I don't run them when I am asleep for safety reasons. Sometimes, if I'm camping outside star gazing, I have to wear a soft knit hat that covers my ears as my ears are quite sensitive to cold.""" then you are likely reading a review from someone who: 1) has an ear canal that is too big for these to make a good seal, or, too small to insert (in which case it's their responsibility to research/buy ear plugs better suited to their larger/small ear canal) 2) doesn't know how to properly insert these into their ear (but thinks they do)... If neither of those reasons apply, then there is no way these won't block "ANY sound at all," that's just not possible. Perhaps they won't block ENOUGH of the sound to your liking, but to claim they don't block ANY sound means you're claiming that the volume is just as loud with the ear plugs in as it is when they are out... I was ignorant for the longest time about the proper way to insert ear plugs until I saw the video that Mack's has here on the product page, but even doing it wrong with them hanging halfway out my ear, they still worked just fine... A single pair lasts me about 2-3 weeks before I feel like swapping to a fresh pair so, this pack of 50 pairs is going to last me a few years or so... If you think your ear canal is normal sized and you're capable of inserting them correctly, these will work wonderfully for you. If you see a review claiming that these do nothing for them, then they probably have other issues unrelated to the ear plugs."