This deal from Wowcher
£16.99 for a breathable charcoal pillow from Cascade Home
Charcoal pillow: Get a charcoal pillow. Breathable: Designed to allow air through and help keep your head cool at night. Material: 40% charcoal fibre, 60 % polyester cover with a 100% polyester filling. Medium support: Ideal for those who sleep on their side. Includes bag: Comes with a PVC bag and handle. Washable cover: Simply remove the cover and wash separately.