Are you good in bed? Sadly, most people suffer from bad bed etiquette — which wrecks the chances of couples getting a good night’s sleep, says a leading researcher.

Astonishingly, almost half of all couples (44 percent) confess they are incompatible between the sheets — and 37 percent insist they sleep better by themselves.

Some 35 percent growl that their mate takes too much of the comforter — and a whopping two-thirds complain their loved one’s snores keep them up.

Sleep deprivation frequently leads to marital problems — but simple steps can help end the nightmare, declares sleep scientist Dr. Chris Alford, of the University of the West of England.

“It is alarming to see how many couples are suffering through bad etiquette in bed,” said the expert.

Here is how to get a better night’s sleep:

  • Put off difficult discussions and decisions until morning — and try to avoid confrontations.
  • Remember that drinking alcohol increases snoring and could make you wake up early.
  • Skip watching TV or reading when your partner is trying to fall asleep.
  • Caffeine takes hours to leave your body, so be careful what you drink as bedtime nears.
  • Heavy exercise or a hot bath close to bedtime keeps you up longer.