Comfy Sheets 100% Egyptian Cotton 800-Thread-Count Deep Pocket Sateen Weave Sheet Set Twin XL Blue 800-Twin XL-L.Blue

To determine this product's thread count, did you count the 3 plies in each thread? in other words, would standard astm testing show 400tc or 133tc?

Some fabrics generate more noise than others. Would you rate of these as quiet, average or noisy?

are these warm or cold weather sheets?

My mattress is 82x 72x 12. Which sheet will fit best