Nearly half of Britons grab just five hours of shut-eye over that week due to worrying if their presents will arrive on time, partying hard, staying up late to wrap presents and getting organised for Christmas Day.
In addition to going to bed late four out of ten adults get up an hour earlier this week so that they can fit more festive activities into their busy schedule, resulting in them feeling even more tired.
The sleep study conducted by Travelodge surveyed 2,000 British adults to investigate their sleeping patterns during the busiest time of the year.
Chris Idzikowski of the Edinburgh Sleep Centre said: “It is important that you try to obtain a regular sleep pattern in the lead up to Christmas. Sleepiness is as dangerous as drinking and you have to be very careful if you’re driving or doing anything else that needs your full attention.
“It is also advisable to drink less alcohol if you’re sleep deprived as you will feel the effect a lot more. The more sleepy you are, the more potent the drink.”