I've had mine 8+ years and immediately felt better after using it. I thought it was my husband with the sleep problem since he always got out of bed to sleep on the couch! Even told the Dr. that but he still wanted me to get a sleep study. Turns out my upper palette relaxes when I sleep and blocks air flow. I know so many people now that use CPAP machines and am positive many more need them. It helps to have a sence of humor about it too. At first I didn't but now I know so many people have them I don't care any more. At first I sounded like Darth Vador with it on and I'd say to my husband in the dark, "Hey baby, feeling frisky?" which just cracked us up. Now after so many years the Darth Vador sound is gone, sigh. I bought alot of fabric once when I went to a big quilt show and my quilting friend threatened to kink my tubing and steal all my fabric once... I have alot of fun with it like at quilt retreats and with friends and I feel rested in the mornings.