If you're a heavy snorer, it may be irritating to your partner - but it could also net you a larger retirement income. People who suffer from obstructive sleep apnoea, a condition where throat muscles block the airways in their sleep, could receive nearly £600 a year extra if they declare the condition when they buy an annuity, depending on the pension provider they choose. However, there's a darker side to the story than just getting more cash - people who snore heavily in bed are more susceptible to high blood pressure, and therefore more likely to experience heart failure. In other words, sleep apnoea sufferers get a larger pension because statistically they live shorter lives. "If you are a noisy snorer, you're unlikely to tell many people," said Andrew Tully, director of MGM Advantage. "But if you share that little bit of information when you get to retirement, it could mean a difference of thousands of pounds of extra income." Over a 21-year retirement, people with sleep apnoea will receive on average around £12,000 more than those who don't. According to the NHS, around six million people over the age of 65 have been diagnosed with the condition.