A towel that felt like a cloud when you bought it can feel like sandpaper a year later. There are usually three or four reasons, and most of them are of our own making.
The first is water hardness. Minerals cling to the fibres of towels washed in hard water. The fibres almost turn to stone with these minerals. In many regions, including much of Turkey, tap water is quite hard, which makes the problem worse. The second is too much detergent. Excess detergent does not rinse out fully, stays in the fibres and makes them stiff once dry. The third, ironically, is fabric softener. Over time softener builds up on the fibre surface, which both reduces absorbency and creates that thick, waxy stiffness.
The fourth is how the towel is dried. Towels that dry slowly in still air, hung flat and taut, end up with flattened, stiff loops. The fix is a few small habits. Halve the detergent, drop the softener, and do a wash with vinegar once a month. Give the towel two or three firm shakes before hanging it; those loops will stand up again.