68 year old, long-time cpap user.
nope, it is not too tight. It feels comfortable and keeps the mask in place. I have continued to use the little bit of cardboard and the indentation has lessened considerably.
I saw a topic on skull indentations from about a year ago and I wanted to respond to that question. I have been a cpap user for about 16 years. More recently, I have been using a nasal mask which has one of two straps which crosses the top of my head. Lately it has been causing more of an indentation to my skin and it has been more noticeable when I brush my hair. I'm sure some of if is because I'm losing some cushioning and elasticity as I age.
However, I decided to try an experiment this week which seems to have helped lessen the indentation. In order to spread some of the force of the top strap, I cut a small piece of light, thin, flexible cardboard from an empty box of tissues or a cereal box which is around 2" wide and about 8" long. At night, I have been slipping the piece of cardboard under the strap at the top of my skull, pointing from ear to ear. I rounded the corners so it does not snag. It seems to stay in place and it is not hot or in the way when I sleep. It is disposable and from stuff I already have.
I have noticed that it has decreased the noticeable indentation, so I just wanted to share this idea.