Helps you sleep soundly.
We purchased this for our baby's room. We already had one for our own bedroom and loved it. Totally drowns out the sounds of life outside the window and allows for a deeper sleep.<br /><br />Our baby now associates the noise machine with sleeping and her eyelids start drooping the moment we turn it on.<br /><br />Four stars because it does seem that the noise gets softer/muffled after a few months of use. I thought maybe this was just me going deaf, but I don't think so. The new one we got for the baby is definitely louder than our old workhorse. I also think the holes in the machine that are supposed to allow you to vary the volume of sound don't really do enough. There is a noticeable difference in volume but not enough range.<br /><br />Updated review February 2017: One of our machines has developed a truly irritating rattle. It took a couple days of terrible sleep before I figured it out. Like another reviewer mentioned, it seems better if the machine is on an angle, but the rattle is so unpredictable. I'm ordering a replacement and hoping this is just the result of years of nightly use and not some sort of manufacturing quality issue. Our device and the newer one we got for our daughter are identical and we've moved them around enough that we don't know which was the original anymore.
Rating: 4 stars