Frette describes its sheets by weave, and the weave decides how the bed feels far more than the colour does. It is worth settling on one before you compare designs.
Percale is the crisp option, and Frette sells it in ranges such as Crispy Percale.
Poplin sits between percale and sateen. Frette uses pure cotton poplin for sets such as Triplo Bourdon, which it describes as soft and smooth with a high shine, finished with three lines of embroidery.
Sateen is the smoothest of the three. The Ultimate Sheet Set is made from it in plain finishes, so it works under a patterned duvet cover or throw.
Each product page lists the dimensions in both centimetres and inches, sheets and shams included, so measure your mattress and pillows and compare the numbers rather than going by the size name alone.
Many towels, bath sheets and robes have a "Personalize with Monogram" button on the product page, and the Monogram Shop collects them in one place. A monogram makes a good gift, but personalised pieces can't be returned, so check the spelling before you order. If you'd rather choose in person, the boutique on South Audley Street in London lets you see the fabrics side by side.