I would rate these as three generation sheets because they could be around for your grandchildren to use. They are thick and heavy but much softer than canvas. I use softener and dry the top and bottom sheets separately in order to have fewer wrinkles. Because I like an inviting looking bed, I iron the pillow cases and the top edge of the top sheet. They lose the wrinkles easily. I'm not sure the bottom sheet would fit the maximum depth claimed. My mattress is 14" deep and the bottom sheet barely fits it.