Ikea Dvala Green King Pillowcases, 100% Cotton Thread count: 144 /inch Length: 51 cm Width: 91 cm Care instructions Machine wash ,hot 140F (60C). Do not bleach. Tumble dry, normal. Iron, high temperature. Do not dryclean. Good to know 144 thread count. Thread count indicates the number of threads per square inch of fabric. The higher the thread count the more densely woven the fabric. Designer: IKEA of Sweden People & Planet Non-chlorine bleach. Renewable material (cotton). No optical brightener has been used.