Most people being asked what matters when it comes to a good bed would say it must be comfortable - and what they mean is ergonomic comfort. This is quite similar for most bed producers who strongly focus on developing good ergonomic properties in their products. There is nothing wrong about that of course, but it's not enough. There is a dimension we can name "Bed Climate" and it is not the climate that describes the relation between those sharing the bed. In fact, it is the micro-climate between your mattress and your duvet which is completely different from the room climate outside of your bed. What's really cool about it: You can take control if you want to continue to sweat like in a jungle or to feel perfectly fine as you would be at a Californian beach with a crispy summer breeze.
Bed Climate out of balance means stress for your body
What's triggering your bed climate is first of all your body, being the oven and the humidifier at the same time. The heavier you are, the more energy you create and the more humidity you release affecting the bed climate. And the higher humidity gets in your bed, the more your body starts sweating to cool down. This means a lot stress for your body and it affects the quality of your sleep significantly. Of course, some people who tend to freeze and do not have sufficient insulation from their duvet, will suffer from feeling cold during night and that is affecting sleep as well. Removing the duvet to cool down or rubbing your feet for warming up, it all means disturbed sleep and insufficient regeneration for a good day that should start at night.
What's the problem?
Aiming for a micro climate that is warm and dry instead of warm and humid, it is crucial to release moisture out of the space between mattress and duvet where you are sleeping. But there starts the problem already: Only few bed systems are designed for such functionality - most systems keep the warm and humid air back and the vicious circle towards a bad bed climate starts.
How to take control?
It is fundamental to reduce sweating as source of humidity by levelling the bedroom temperature below 20° C. In addition to this you should adjust your duvet to your personal needs by selecting the right insulation level. Heavy duvets with lots of filling material are ok for people with low weight and being in a lower body temperature range. Also here quality goes before quantity: Better to buy a duvet with natural high quality filling material (goose or duck downs, sheep wool, camel hair) that allows to keep its quantity at a lower level. And so providing insulation that is on a sufficient level to keep you warm while moisture has a chance to escape. Choosing a mattress that provides good ventilation will also help to regulate your bed climate for better sleep
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