Before I got my machine, when I traveled the people in the ajoining rooms were BAD.. They would have the TV BLARING, or be POUNDING on the walls 1/2 the night while I was "sleeping".

After I got the machine the people next door were way quieter ,,  no more TV blaring, no more pounding on walls..., took the wife a couple weeks to get use to the missing freight train thoo.

You can buy machines  off of Craigslist reasonable, just make sure you get 1 with the "chip".  I have 4-5 machines, couple spares, 1 in Wy, because I can't even take a nap without 1.

 Just DO NOT EVER  tell the CDL medical tester you use 1, or have  a problem snoring , Or they want a yearly test/reading.