I was looking for these fitted bed sheets as a spare as I have used them and they are great (your back wouldn't sweat while you lie on them as they are 100% cotton - unlike polycottons) and feel really nice.
They weren't at this price until the Blue Cross Sale was finished as of today (Ironic isn't it!!!).
Single and doubles are also available at £7.50 and £9.
Use code SHA1 for free delivery as usual.