Nanotex Cool Comfort Sheet Sets

Nanotex Cool Comfort Sheet Sets

I am not too sure about purchasing theses sheets. I have only used 100% cotton and higher thread counts. I see these do not breathe well. I am a sleep sweater so I need the sheets to breathe too. Any feedback on recent purchasers would be great. I will pay for high quality sheets. They can least for years. The sets I have now are probably 10 yrs old. And, still feel soft and good for sleep.
Caroline