Electric Blanket in Morrisons Thornbury. DOUBLE £18 KING £20
I recently bought this for the cheapest I could find at £28 at the time from Groupon.
The Silentnight Comfort control electric blanket has 3 heat settings and warms up in minutes for a snug night's sleep. The ivory coloured double heated under blanket is suitable for all night use, includes an overnight protection mechanism and is fully BEAB approved.
Machine washable and suitable to tumble dry, the Silentnight Comfort comes with a 3 year manufacturers guarantee.