Is this mask comfortable for side sleepers and what is the material made out of?

It is not comfortable for side sleepers at all. The advertising is complete BS. The velcro cannot be tightened and the mask glides away. Quality is terrible as well. You'd expect to see it at the Dollar store. Don't trust the "rosey" reviews and the people who adjusted their reviews after getting refunds.

How do the straps connect?

The straps are really low quality velcro that cannot be adjusted. Not great for neither back nor side sleepers. This is a really poor product.

How does the mask work for those who sleep on their stomach? Also, how well does it work for those with larger noses? Does it still fit properly?

Thank you for your question, Matt. We have tested our product on back, side, and stomach sleepers and have had very high ratings from each type of sleeper. For those who sleep on their stomach, we had a 97% satisfaction rate. In terms of the size of your nose, this will of course depend on you personally. Each person has a uniquely contoured face, nose, head, and eyes. We cannot guarantee that it will fit properly on every person because of the unique shapes of each person. However, please try the product and if you are not happy for any reason, return it anytime. No questions asked. Thank you!

I have a contoured Mask made with foam. But it's thick and HOT in the summer & my thin mask leaves bags under my eyes. How would this mask benefit me?

Thank you for your inquiry, Kat-Woman! Our Nidra Deep Rest sleep mask is made from a polyester interlock and a thin foam insert. The mask is not too hot to wear in the summer because it is made with lightweight breathable material. It is thicker than traditional masks because it is higher quality and allows for us to have the molded contoured cups, but we have at this point never had a complaint about it being too hot to wear in summer. We invite you to try the mask, and if you are not 100% satisfied, we are happy to refund your money at ANYTIME. No questions asked. Thank you!