If you occasionally miss out on a few hours of sleep, it's not a big deal. In most cases, your body will make it up over the next several days. If you routinely sleep less than your body requires, though, you're opening yourself up to a whole host of physical and emotional problems. You don't need to go forty or fifty hours without sleep to suffer from sleep deprivation. If you routinely shortchange your body by an hour here and an hour there, the effects do start to add up. The consequences associated with chronic sleep deprivation include decreased daytime alertness, impaired short term memory, irritability, relationship stress, depression and a higher risk of automobile or occupational injury. In fact, one research study found that the effects of not getting enough sleep were about the same as having a .05 blood alcohol level. Sleeping poorly has also been associated with high blood pressure, stroke, obesity, diabetes, stroke, heart failure and mood disorders. Our bodies use sleep time to repair and grow cells, and when they are deprived of that time, they run inefficiently. Your mattress can play a big part in helping you get a good night's sleep. When you sleep on a proper mattress that supports your body, you're less likely to have your sleep disturbed during the night by tossing and turning due to minor aches and pains. You'll find a large selection of quality mattresses at www.mattressnextday.co.uk, one of the UK's best sources of high quality mattresses.