And you can buy one right here.
Sky News: When Sex Is Not Enough: "Most adults would prefer to cuddle up with a good book at bedtime rather than make love to their partner.
A survey of 2,000 people showed lovemaking was fourth in a list of 'favourite activities' when hitting the sack, behind reading, watching TV - and going to sleep.
Women were more likely to prefer to read at night, according to the survey by hotel chain Travelodge.
The most popular books of the moment were The Da Vinci Code, Lord of the Rings, Hitchhiker's Guide to the Galaxy, To Kill a Mocking Bird, and Treasure Island.
Travelodge spokesman Wayne Munnelly said: 'Reading is the perfect way to wind down at the end of the day.
'Anxiety levels will drop as it provides a gentle distraction, pushing any worries out of your mind which will ultimately help you relax and fall asleep.'"