Once again ideal world cherry picking review... I ordered chil tex pillow cases... Peter the presenter was so gushing!!! ( I should have been suspicious) these are cold to the feel.. Even cold through your pillow cases even when you wake up you will feel the coldness.... Utter rubbish all the above is untrue.. They are semi quilted 40% nylon and 60% polyester as on the label... I have sent my 1 star review to ideal world.. Yet again not posted on the website I have emailed them and they replied... It takes 14 days to post reviews... Just enough time to present the item again and they will hopefully get rid of the stock of these just zipped pillow cases... My suggestion just go to Dunelm and purchase a pair of there excellent high tread count cotton zipped pillow cases for about half the price of the rubbish ideal world are trying to pedal!!!!