This morning, I woke up because both my straps on the facemask of my CPAP were undone, making massive leaks back and forth as I tried to adjust them in my sleep. I noticed the straps were undone. Suddenly, I took off the mask- the part that was supposed to attach was gone! I got out of bed and shook out the sheets and comforter. I carefully lifted the pillows. Getting more frantic I tried the straps again- I looked under the bed, under the matress, back in the sheets and under the pillow. It was gone! I gave up. I got back in bed and looked online for a few. Sometime later, I realized- there WERE no parts missing. But why wouldn't the straps hook up? I quit.