The five stages of sleep
People often talk and write about everything that has to do with sleep. Although many of these stories are myths, some of them are true. We have listed several relevant facts about sleep below.
The first four stages are referred to as non-REM sleep. REM is short for Rapid Eye Movement. The first two stages of the non-REM sleep consist of periods of light sleep. During these stages, people may be easily awoken. If brain activity is monitored during these stages, it would appear as if we are still awake. This light form of sleep takes up approximately 50% of the total duration of sleep. This is followed by a deep period of sleep, approximately 25% of the total sleep duration, and it is difficult to wake someone up during this stage. The fifth and last cycle is the dream stage, or REM sleep. During this stage, the eyes move back and forth constantly. This dream sleep is once again a light form of sleep, and also takes up approximately 25% of the total sleep duration
One-fourth REM sleep
Dream sleep is a light form of sleep
Only 25% of our cycles involve deep sleep
Usually five cycles per night
People repeat these cycles again and again in a stage that lasts around 90 minutes, and ends with the dream cycle each time. We usually experience five of these cycles per night.
Additionally, the dream stage’s share increases with each cycle as the night progresses. This may last up to 45 minutes as morning arrives, and this is what causes us to remember our dreams more easily.
Why teenagers often sleep late
Teenagers need more sleep than adults, around nine hours on average, but they don’t get sleepy until later in the evening. The result is that they have a hard time getting up, and like to have a lie-in.
The disadvantage of this is that they get too little exposure to daylight in the morning. This lack means that they will not feel sleepy until later.
People grow fastest during the night
It may surprise you to realise that when you wake up in the morning, you might be a couple of centimetres taller than you were when you went to bed. This is because our spinal columns are compressed slightly during the day, and the supporting function of our vertebrae recovers if you lie stretched out in bed, relaxed.
In addition, various glands that stimulate growth are more active when we sleep.
The power of a power nap
If you are tired, don’t hesitate to take a brief nap lasting around 20 or 25 minutes. Researchers say that getting some extra rest is a good way to recharge your batteries when you are tired.
If you have the chance to take a short power nap, you should always try to do this. On the other hand, do not sleep too long as this increases the chance you will only be more tired when you wake up.
Do the hours before midnight really count double?
Everyone has heard the story that the hours you sleep before midnight count double. It is in fact true that we sleep deeper the first couple of hours than later in the night.
This is also the reason behind the story that the first few hours count double. However, the time you go to sleep really doesn’t make a difference; the important thing is the number of hours of sleep you get, and the quality of this sleep.
Moving a lot during the night is good for you
During sleep, we usually move around a lot and turn over once every ten minutes on average. This means we turn over some 40 times each night. Moving a lot in bed is good; sleep experts say this is really necessary for our circulation. If you don’t move a lot, and lie still on your back the entire night without changing position, not only will you not feel well-rested the next morning, but you will also feel really stiff.
Not every mattress is conducive to turning over during sleep. If the mattress is too hollow, and an indentation develops, it becomes harder to turn over. The elasticity and flexibility of the Vita Talalay® material supports you in the movements you make. This means that turning over requires a minimum amount of energy because the mattress actually helps you turn over.
Women sleep longer
An experiment has shown that women sleep an average of nine hours per night, and men eight. Although women may sleep an hour longer, they tend to sleep lighter than men.
The main cause of this lies in their hormonal makeup which has a strong effect on the sleep cycle. An increase in body temperature in women during sleep also often plays a role.
Is Vita Talalay safe without being organic ?
Food can be fully organic. But with a latex mattress that does not make sense. Harvested organic latex always need an addition of some inorganic materials to process it into a latex mattress, topper or pillow. Organic certifications do some traceability of the latex itself but do not trace whether the added inorganic materials (needed to get from liquid to a solid material) are safe. All Vita Talalay is Oekotex 100 Class 1. With Natural Vita Talalay we even have two more certifications that test the end product to be safe. And on top Cradle to Cradle chemists have analysed not only the latex, but also the inorganic additives. It shows that the latex and the additives contains zero harmful materials for the health of humans and the environment.
Is Vita Talalay latex biodegradable ?
The natural latex used is biobased and also biodegrades. However, there is no such thing as a foam being biodegradable! Not a memory foam, not a Dunlop latex and not a Talalay. Claims like “biodegradable as an oak leaf” are misleading. Indeed the liquid natural latex rubber itself is biodegradable, but the finished product is not. The reason is that in the process crosslinks are made of the molecules, that can not easily be undone. Which is a good thing: otherwise your bed would be degrading while you are sleeping in it.
Of course, after a long time the particles would get smaller and smaller until you can’t see them anymore. But they are still there: instead of bio-degrading it is deteriorating.
Where does the latex come from?
Most of our latex is sourced from South East Asia, Thailand.