London - Fifty Shades of Grey's leading man has a Red Room of Pain in which his X-rated exploits occur.
But if Christian Grey wanted to get even luckier in there, perhaps he should have painted it lilac.
Clocking up 3.49 intimate encounters every week, couples with purple bedclothes, walls or furniture have more sex than those with rooms leaning towards any other colour scheme.
People with red bedrooms notch up a pretty respectable 3.18 sex sessions per week on to their crimson bedposts, while those with sky blue boudoirs manage 3.14.
Putting up a valiant battle not to be outdone by those at the top, people with pink bedrooms make love on average 3.02 times every week, and couples with black rooms slip just below the 3.0 mark with an average of 2.99 times.
Meanwhile, those poor loveless souls in grey rooms tend to have sex only 1.8 times per week, green only 1.89 and beige only 1.97, all below the national average of 2.55.
The survey of 2,000 adults by retailer Littlewoods.com also revealed that in terms of bedding, people with silk sheets are likely to have more sex than those with any other type of bedding, tallying up a whopping 4.25 times each week.
On the other end of the spectrum, people who snuggle up under duvets may be snuggling up alone: beds with duvets see action only 1.8 times per week, compared with bed clothes made of cotton (2.72), nylon (2.35) and even polyester (2.33).
Laurence Llewelyn-Bowen, Homes Style Expert for Lttlewoods.com, said: “For years I have been telling British homeowners, a beige bedroom makes for a beige sex life.
“That's one thing I wouldn’t want to wish on anyone.”
BEDROOM COLOUR / SEX PER WEEK
1. Purple - 3.49
2. Red - 3.18
3. Sky blue - 3.14
4. Pink - 3.02
5. Black - 2.99
6. Navy blue - 2.76
7. Yellow - 2.43
8. Orange - 2.36
9. Brown - 2.10
10. White - 2.02
11. Beige - 1.97
12. Green - 1.89
13. Grey - 1.80
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TYPE OF BEDDING / SEX PER WEEK
1. Silk - 4.35
2. Cotton - 2.72
3. Nylon - 2.35
4. Polyester - 2.33
5. Duvet - 1.80. - Daily Mail