My husband has been struggling with severe sleep apnea but without insurance we have been unable to go to a sleep clinic. I found this site and was able to purchase the cpap/apap machine. He put the nose mask on and immediately went to sleep. For once in many years he didn't snore at all, he didn't get up at all, and he didn't even move at all. He woke up in the morning and first words were, WOW! Ever since then he sleeps like a baby and is fully awake and energetic all day.