These are perfect for all around use.  Strethchy medium weight Tee Shirt material is great! I liked the first one (black) so much I bought 5 more one in all the colors they offered in 2XL! I get positive comments whenever I wear one out of the house.  They are not too hot and not too cold. Perfect for lounging around the house. Get cold, pop up the hood.  Get hot, roll up the sleeves! I wear them to bed as a Pajama top.  The hood goes down over my eyes so it blocks out light while I sleep.  Of added intrest to you C-PAP users the hood blocks out sound from the device and guards your eyes from leaks in the mask.  OMG these is a must have for this alone.  I like the black color the best.  The other colors show sweat if you use them for exercise.  The only con is that they do not have more dark colors.