This deal from Wowcher
From £12.99 for a microfibre mattress and pillow protector set from Cascade Home!
Mattress & Pillow Protector Set: Get a microfibre mattress protector and pillow protector set. Material: Made from 100% microfibre cover. Filling: Filled with soft microfibres for a cushioned feel. Sizes Choose in a single with one pillow protector. Upgrade: Or upgrade to a double, king-size or super king, all of which come with two pillow protectors. Care Instructions: Machine wash at 40°.