Bedfan Sleep Blog

All of the human senses play an important role in sleep wellness. But the most important of those is how we interact with light. To fully understand the effects of light, we need to dig deeper into the body's circadian process and how it works. Thus, it’s important to know how your circadian rhythm and light interact to understand how blue light affects sleep.The body's circadian rhythm functions are connected to the circadian pacemaker (or a master clock) within the brain. The specific area of the brain is within the hypothalamus, the part of the brain primarily responsible for hormone regulation. Inside of the hypothalamus is the suprachiasmatic nucleus (or shortened, SCN). And the SCN is highly sensitive to one external factor: light. A healthy circadian rhythm allows for restorative sleep. It even helps our bodies to produce proteins close to mealtime hormones to provide enough energy (Sleep Foundation). The circadian rhythm also influences mental and physical health- from metabolism to dementia. The circadian rhythm even affects the sleep-promoting hormone melatonin! The circadian rhythm is supposed to follow the pattern of light from the sun to ensure that we sleep at night and are awake during the day. This process is fundamental in producing melatonin. Thus, when darkness begins to fall at dusk, melatonin levels start to rise, encouraging us to sleep. But in our modern age, all of this can be disrupted by the excess of artificial light around us. Light can affect the circadian rhythm in different ways, depending on when the exposure occurs. For example, exposure early in the morning can push the circadian rhythm earlier. In contrast, exposure late at night pushes it later. This explains why late-night exposure to artificial light, especially blue light, can be so harmful. Blue light is a specific wave of light that impacts the body especially powerfully, because most of our exposure to blue light comes from the sun! When we get blue light exposure from the sun, it elevates body temperature and heart rate, making us feel awake and energized (Sleep Foundation). Knowing that, it's no surprise that when the body is exposed to blue light at night, whether from a TV, phone, or other electronic devices, the circadian rhythm is thrown off. Late-night light exposure also throws off transitions through sleep cycles, which makes sleep less refreshing. The best way to ensure that light is not interfering with sleep is to minimize exposure to light (especially blue light) near bedtime. This means avoiding electronics usage as much as possible or using blue light glasses. Efforts can also be made to eliminate outside light from the bedroom by using curtains (especially blackout curtains) or a sleep mask. Blocking out the light from electronics in the bedroom, such as clocks, is also helpful. However, not everyone likes a pitch-black room at night, which is where red light comes in. It is currently theorized that red light promotes melatonin, thus promoting better sleep (Healthline). Most importantly is getting plenty of natural light exposure during the day. https://www.sleepfoundation.org/circadian-rhythmhttps://www.sleepfoundation.org/bedroom-environment/light-and-sleephttps://www.sleepfoundation.org/bedroom-environment/blue-lighthttps://www.healthline.com/health/why-not-to-have-red-lights-on-at-night#facts-about-red-light

Those who are avid coffee lovers know the jittery, awake feeling that too much caffeine can cause- and moreover, its effects on sleep. Drinking any caffeinated drinks too close to bedtime is a sure way not to fall asleep on time. But how does caffeine affect sleep quality? Caffeine, which is usually consumed through drinks, enters the bloodstream through the stomach and then crosses the blood-brain barrier. Once it reaches the brain, it begins blocking the adenosine receptors. These receptors and adenosine play an essential part in sleep and feeling tired. Adenosine is a sleep-promoting chemical produced throughout the day so that as it builds up, the feeling of sleepiness starts to show up. But the presence of caffeine blocking the receptors creates an alert and awake feeling. It usually takes about 30-60 minutes for the effects of caffeine to kick in. It then has a half-life (time taken to eliminate half of the drug) of about 4-6 hours (Sleep Foundation). This means that in some cases, the effects can still be felt six hours after it is consumed. Though, the half-life varies widely for everyone. Because of the long half-life, even a coffee consumed six or so hours before bed could cause sleeping issues. When caffeine is used at night to stave off sleepiness, it can cause insomnia symptoms or worsen pre-existing insomnia. It also not only makes it harder to fall asleep, but it also makes it harder to stay asleep (Sleep Health Foundation)! One of the symptoms of having too much caffeine (or caffeine too close to bedtime) is waking up frequently throughout the night. The consumption of caffeine also cuts down the length of deep sleep, which reduces the refreshingness of sleep. Not only does it reduce deep sleep, but it also reduces sleep time as a whole! One study (https://jcsm.aasm.org/doi/10.5664/jcsm.3170) found that caffeine consumption six hours before bed can reduce sleep time by a whole hour. Most concerningly is the impact that caffeine from a soda can have on breathing during sleep. Sleep-disordered breathing (SDB), which is one of the most common symptoms of Obstructive Sleep Apnea, is more severe after caffeine is consumed. As a whole, caffeine can affect sleep in a multitude of ways, and the amount consumed should be monitored to ensure good, restful sleep.   https://www.sleepfoundation.org/nutrition/caffeine-and-sleep https://www.sleephealthfoundation.org.au/caffeine-and-sleep.html

One of the most common sleep disorders, affecting around 35% of adults, is the sleep-stealing disorder insomnia (Sleep Foundation). Those who have insomnia have difficulty falling asleep or getting a whole, restful night of sleep. While falling back asleep in the morning after waking up too early is easy for most, those with insomnia struggle to go back to sleep. Insomnia, especially long-term, can cause even more significant issues such as daytime sleepiness, poor mental health, and brain fog. These issues can then cause damage to the insomniac's life and relationships. We will cover the reasons for such sleeplessness and the types of insomnia that one can experience. Types of Insomnia Depending on what is causing insomnia, it can be labeled as one of two different types of insomnia. The first is primary insomnia, which is insomnia caused by something outside of health issues, substances, or medications. The second is secondary insomnia, which means that a health issue, substance, or medication is causing insomnia. There are then three types of primary insomnia: idiopathic, SSM (sleep state misperception), and stress-related (Psychiatric Times). The most common type, idiopathic insomnia, is insomnia that is genuinely not caused by any identifiable factors. The rare SSM condition (commonly known as paradoxical insomnia) is the misjudging of how much sleep the person is getting. They may believe that they only got two or three hours of sleep when they actually got a full seven or eight. People with SSM likely bounce between wakefulness, stage one sleep, and light sleep, all while remaining very aware of their surroundings (Verywell Health). This causes them to feel as though they have not gotten enough sleep. The last type of primary insomnia, stress-related, can be caused by mild stress or anxiety. Primary insomnia can also be caused by more minor things, such as the atmosphere of the bedroom. Loud noises from outside, too bright of lights, or a too-hot room can all interrupt sleep and cause insomnia. Changes to the regular sleep schedule, such as jet lag, staying up too late, or working nightshifts, can also cause insomnia. Luckily, this kind of insomnia is short-lived and solved with a change of habit. This could be like wearing an eye mask, using ear plugs, or investing in a bFan bed fan to keep your mattress cool.Secondary insomnia is more of a symptom of another issue than an issue itself. These issues vary widely, from mental health to medications. Insomnia commonly occurs as a symptom of mental health disorders such as anxiety or depression. As many as 80% of people with depression have trouble falling asleep- and those with chronic insomnia are three times more likely than others to develop depression (WebMD). Insomnia can be a symptom of other health issues like sleep apnea, hyperthyroidism, diabetes, and more. Medications for colds, allergies, depression, and more can cause trouble sleeping. Everyday substances like caffeine, alcohol, and tobacco can cause secondary insomnia, too. There are also general factors that make the risk of having insomnia even higher. Pregnancy and the usual hormonal changes that come with being a woman make it more likely for women to struggle with insomnia (Mayo Clinic). Being over the age of 60 or a teenager also increases the chances due to changes in sleep patterns. If you are suffering from this insomnia, look at our list of who to talk to about sleep problems and get the help you need.https://www.sleepfoundation.org/insomnia/what-causes-insomniahttps://www.verywellhealth.com/definition-of-paradoxical-sleep-3014904https://www.psychiatrictimes.com/view/primary-insomnia-lifelong-problemhttps://www.webmd.com/depression/features/sleep-problemshttps://www.webmd.com/sleep-disorders/insomnia-symptoms-and-causeshttps://www.mayoclinic.org/diseases-conditions/insomnia/symptoms-causes/syc-20355167

The feeling of waking up in the morning and feeling bogged down and disorientated is all too familiar to some people. Those people likely struggle with something known as sleep inertia. Sleep inertia occurs when waking up in the morning or waking up from a nap. It's the feeling of just not having the energy to get up and wanting nothing more than to go back to bed.

Roughly half of all adults within the United States suffer from the same sleep problem. In fact, you or someone you know likely suffer from this loud problem as well: snoring. While it might seem like a sleep disorder in and of itself, it's not, but it can be a symptom of one. One of the more common symptoms of obstructive sleep apnea (OSA) is snoring. But unless that snoring is accompanied by choking or gasping sounds, it is likely just harmless snoring (Sleep Foundation). So what exactly is snoring? The distinctive snoring sound is caused by tissues in the back of the throat rattling and vibrating. The muscles in the airway relax during sleep, causing the airway to tighten. The restricted air that moves through the airway causes the rattling and vibrating sounds as it moves past the tissues in the back of the throat. So, what causes people to snore? Several factors can play a part in whether or not a person without OSA snores. Some factors, such as having a cold, are not long-lasting and cause snoring to occur for a limited time only. Having a cold or otherwise caused congestion limits a person's ability to breathe through their nose (WebMD). Drinking alcohol can also cause snoring, as it causes the muscles in the throat to relax and thus narrows the airway. The position in which someone is sleeping also plays a significant role in snoring occurring. Any awkward sleeping position which restricts the airway can cause snoring (Advanced Sleep Medicine Services, Inc.). Pregnancy, specifically in later trimesters, causes swelling, which can constrict the airway and cause snoring. Swollen adenoids or swollen tonsils can also restrict breathing and cause snoring to occur (this is most commonly seen in children).More long-term factors, such as obesity, cause snoring to become a more persistent issue. Obesity causes snoring because of the extra fatty tissue on the neck, which puts pressure on the airways (MedlinePlus). A generally large or misshapen tongue can restrict the airways and cause snoring as well. Older people are more likely to snore as the muscles in their throat weaken due to age. Nasal issues, such as misshapenness, can also cause difficulty breathing and lead to snoring.Two significant risk factors that can cause snoring are being a man or having a family history of snoring or OSA. The airway within men is more vulnerable to collapse or be constricted as they have a longer upper airway. Men being more prone to snoring is also due to hormone differences and fat distribution (Sleep.org). People most commonly find out that they snore from their partners or anyone else near enough to hear them. If no one else is around to hear and inform someone worried they're a snorer, they can opt to use apps that will record their sleep. https://www.sleepdr.com/the-sleep-blog/is-snoring-a-sleep-disorder-or-symptom/https://www.sleep.org/men-snore-women/https://medlineplus.gov/ency/patientinstructions/000720.htmhttps://www.sleepfoundation.org/snoringhttps://www.webmd.com/sleep-disorders/ss/slideshow-stop-snoring

The best rule of thumb for this range is that the younger you are, the more sleep time you need. Newborn babies, specifically, need the most sleep per day. Over the course of 24 hours, a newborn baby needs to get between fourteen to seventeen hours of sleep.

It is important to ensure that you are sleeping to your fullest, otherwise, one of the biggest consequences of sleep loss will be inflammatory cardiovascular struggles. It has been found that sleep loss can result in heightened blood pressure, which thus can cause many other determinants regarding the cardiovascular system.