I was excited to use these sheets because they're organic. So, I know that no chemicals or pesticides were used on this product which is better for my family and the environment. Out of the package, there was a strong odor and they felt scratchy and stiff, but after washing them, they smelled wonderful and were much softer. I've washed them twice since, and they just get softer each time... the beauty of cotton! But because these are cotton, be sure to take them out of the dryer right away or they are really wrinkled. The mattress is pretty thick but the fitted sheet fit well. They are very comfortable to sleep on, cool and soft, just right for these warm nights. They feel substantial so I feel they will hold up through many washings. I'm very satisfied with these sheets and highly recommend!