There’s no clear difference between stages three and four however, stage three has 20 to 50 percent delta activity while stage four has over 50 percent. Research Behind Sleep Stages and Deep SleepĪccording to the Rechtschaffen & Kales (R & K) Standard of 1968, deep sleep can be described as stage three of non-rapid eye movement sleep and is often referred to as “ slow-wave sleep”. In contrast with Rapid Eye Movement sleep (REM sleep cycle), the main characteristics of slow-wave sleep are absent or slow eye movement, moderate muscle tone, and lack of genital activity. This state is a depolarizing phase, whereas the former state is a hyperpolarizing phase. The next section of the wave is indicated by an upstate an excitation period whereby the neurons fire briefly at a rapid rate. It’s during this period that the neocortical neurons are able to rest.
The initial section of the wave is indicated by a down state an inhibition period whereby the neurons in the neocortex are silent. Because the EEG activity is synchronized, this period of sleep is known as slow-wave sleep: it produces slow waves with a relatively high amplitude and a frequency of less than 1 Hz. What is Deep Sleep?ĭeep sleep is the sleep stage that is associated with the slowest brain waves during sleep. We’ve all heard of deep sleep (also known as slow-wave sleep) and how our bodies need it to function properly, but what exactly is it? There is an abundant amount of research on deep sleep, but we have all of the essential information you need to know on what it is, its function, and how you can get more of it.
Dreams – What they mean and psychology behind them.L size (40*50") - best for medium and large pets between 40 - 60 pounds. M size (40*30") - BEST for small and medium pets between 25 - 40 pounds. Sizing - For combinations with bed: M size is best for bed sizes of XS-M while L size is best with beds sized L-XXL.To avoid matting of the fur, it is important that the blanket is thoroughly dried in the DRYER after washing - do NOT air dry. Easy Care - For easy cleaning and maintenance, our blanket is machine washable and dryer safe.Modern Design - Our soft neutral colors allow for this pet accessory to aesthetically blend with any home decor.Goes perfectly together with our pet bed. This pet shag throw also makes a great cover for the pet crate. This versatile blanket will also help protect your furniture, floors, car seats, and other surfaces. Multi-functional - An effortless way for your pets to cuddle up on the couch or on the go.
The lightweight, breathable blanket material provides just the right amount of warmth. The double-layer ultra-soft vegan fur is designed to reminisce a mother's fur coat aiding your pets in superior comfort and security unlike any other blanket on the market. Unparalleled Comfort - This DeepSleep Calming Blanket™ is a perfect addition for your furry kids.Double layer, made from the same super soft non-toxic faux fur as the DeepSleep Calming Bed™. The perfect combination with our DeepSleep Calming Bed™! Provide your pet with pure happiness and warmth.
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