I am always looking for comfortable shirts I can sleep in, and these tanks are exactly what I wanted. Most PJ tops and bottoms are made using some type of polyester which I absolutely hate because it clings to your body or makes you get static in your hair even if you put three times the amount of Downy in the rinse cycle. I only like to wear clothes made of 100% cotton, and I am forever searching for blouses, pants etc. so I can dress as comfortably as possible. ( I wish someone would make suits made out of 100% cotton so I could be comfortable at work.)  I go to sleep every night wearing one of these tanks then I do my work-out in it so I'm getting two uses per tank per day. I ordered two in each of the colors I like, (I now have 12) and I'm going to order several more each month until I have an entire drawer full of them. I hope they don't ever stop  making them.