Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: What can I do to soften the fabric.  After washing, the sheets are very rough.
Document: I slept on these sheets for the first time last night after sleeping on 350 thread count sheets for the past couple of years. There's a huge difference in how they feel against my skin. These sheets are also generously proportioned, so the bottom sheet easily fits over my feather bed and I don't have to deal with the corners slipping off the mattress every time I get in or out of bed. The elastic fits all the way around the sheets also make them fit the bed better than some other sheets I've used.
Got these for my wife for Christmas. Great Product, probably the softest sheets I've ever slept in. You won't be sorry and you can't beat the price
The pros:We've been using the Renaissance 600 Thread Count 100% Cotton Sateen King Sheet Set for about a week and we hacv to say that it feels very soft to touch. These are great sheets to sleep on, they are thick but yet they feel soft.
In fact, they felt even softer than they did right out of the box. I hope Amazon gets more of these in soon. For now, I'm going to say that this is an excellent product!
I would say it has more green than blue.They wrinkle more than other sheet sets, but I don't find this as a real problem since anyway everybody sleeps with their eyes closed.
I bought this set in Wt. Blue (Water Blue) thinking that it was a fairly dark  blue color that resembled a sheet set I already own. At least that is what the picture on the website led me to believe. The color of the sheet set that actually arrived, labeled Wt. Blue, was more of an extremely light baby blue color. The actual color is nice, just not what I was expecting or hoping for.
Hence, the three. :-)
Answer: It usually takes several washes for them to become real soft. I washed mine in warm water 3 times before putting them on my bed. We've washed them about 5 times total now and ours are super soft.