Two Silentnight Pillows for £5
Get two Silentnight pillows for £5 at Wilko. You can get this with free click and collect.
This is the cheapest price for two Silentnight pillows, and works out cheaper than Amazon's pack of 4 for £15.
Argos is selling Deep Sleep Silentnight pillows for £4.99 each, so if you're looking for the plumper, bigger pillows these are a good deal and selling fast.