When calling attention to the importance of healthy rest, all scientific studies should conclude: there’s no life without sleep. Our brain and body need a repose interval to function (and to do that well). It’s that simple!

The main reasons for which sleep is essential to us can be easily explained, thanks to outstanding research which has revealed the entire specter of consequences of proper – or improper – rest for the human body. Most mattress and bed manufacturers use the findings of those studies to educate their customers and help them choose the right bedding according to personal needs and preferences.

Thus, you don’t need to spend hours reading scientific papers to understand what sleep means for you; reading reviews to-the-point should do the trick as well. Here’s a brief selection of reasons, that I compiled after having read a Nolah mattress review:

Good sleep equals improved focus, productivity, and athletic performance

Proper sleep is imperative for various brain functions: cognition, focus, productivity, etc. Sleep deprivation has adverse effects on all of them. It affects memory too, leading to reduced work or school accomplishments. Some studies compare the negative impact of sleep shortage on the brain with the one generated by alcohol intoxication. On the other hand, peaceful (and plenty of) sleep helps improve your memory and problem-solving skills, as well as your capacity to perform (academically, professionally, etc.). Proper sleep enhances athletic effectiveness, whether you’re a professional athlete or just a person who likes to work out.

Healthy rest boosts a healthy diet

Numerous studies have shown that poor (or lack of) sleep leads to weight gain. According to experts, sleep shortage is one of the highest risk factors for obesity. When you’re sleep deprived, you tend to develop a huge appetite, so you eat more calories. Sleeping well helps you maintain a decent weight, as your hormones remain at the right levels and you don’t feel the need to eat more and more fat and heavy foods.

Improved immune system

When sleeping poorly, you’re more likely to catch a cold or other illness. Medical research has shown that not getting at least 8 hours of sleep per night makes you more vulnerable to viruses because it weakens your immune system. The conclusion is simple: if you don’t want to get sick, get plenty of healthy sleep!

Sleep deprivation brings health risks and depression

The risk of having a stroke, poor blood circulation, of developing heart disease or diabetes is higher for people who don’t sleep appropriately than for those who have a regular and well-established sleep schedule. Studies have indicated that people who repeatedly sleep less than 6 hours per night show a higher risk of serious health threats. Also, depression is related directly to improper rest. Specialists estimate that almost 90% of people suffering from it complain about the quality of their sleep. Sleep disorders also increase suicide risk among individuals suffering from depression. One primary reason to make sure that you get plenty of rest!

A good night makes a good day

The quality of your sleep also influences your ability to recognize emotions and to interact with others. According to experts, poor sleep impacts your ability to process the emotional information you receive daily from other people – or your own emotions, for that matter. So, if you want to have a good day at work or doing anything else you do, try to enjoy the best possible sleep during the night. It’s what will make you perform and keep the right attitude.