What sizes do they come in? March 29, 2018 01:39 Updated Follow We offer the Fitted Sheet in UK sizes Single, Double, King and Super King. Related articles Will you be releasing any other bedding to go with the sheet? How deep is your mattress, will my sheets fit? How heavy are your Hybrid® mattresses and what sizes do you offer? How long does the Aloe Vera last? Is there a thread count of the Fitted Sheet?