Most African-Americans like to pray just before doing so, white Americans like to do with their pets, Asians tend to do better, and Hispanics are concerned only with prior work.

It is the dream and the dream in the 2010 survey by the U.S. National Sleep Foundation (NSF) shows that sleep patterns vary by ethnic group to which it belongs.

Afro-Americans are the busiest of bedtime routine: three-quarters said they watched television in the hour before bedtime, and only slightly less - 71% - said they prayed.

Only 18% of Asian, a third of whites and nearly half of Hispanics said they prayed before going to bed.

1 in 10 have sex every night

One in 10 African Americans and Hispanics, said they had sex every night - which is 10 times more than Asians and 2.5 times more than whites.

Asian sleeping better, according to the study, said to be the first to examine the ethnic differencs dream in the United States.

Up to 85% of Asians said they had a good rest at least a few days or more per week, and most of them did without sleep-aids.

Only 5% of Asians said they had used a medication to sleep at least a few nights a week compared with 13% of whites, 9% of blacks and 8% of Hispanics.

Kept awake by worries

Hispanics are more likely to say they are kept awake by financial, employment, personal relationships or health related concerns, the study shows.

Nearly four in 10 Hispanics (38%) and one third of African Americans reported losing sleep a few nights a week for any of those problems compared with about one quarter of whites or Asians.

About 20% of Hispanics and blacks said they lost sleep each night over economic, health or personal issues.

Sleeping with pets

Whites, meanwhile, were more likely to report sleep with their pets: 14% of whites said they used to sleep with Fido or Fluffy compared with only 2% of respondents from other ethnic groups.

And Asians were more likely to report sleep in the same room with their children: 28% of Asians said they did compared to 22% of Hispanics, 15% of blacks and 8% of whites .

“If you’re having trouble sleeping and sleeps with her husband, her son, her pet, or all three, remember that may be contributing to sleep disorders that prevent him from sleeping a good night,” said Sonia Ancolies-Israel, chair NSF working group which conducted the survey.

Similarities

But while there are differences, there are also similarities in the habits of different ethnic groups dream.

For example, all groups said they had missed work or family, as the functions were too shit (19% - 24%) and among couples who live together, all ethnic groups frequently reported are too tired to sex - around a quarter of the time.