COMMON : Mattress in a Box
What is a mattress in a box? A mattress in a box is a type of mattress that is compressed, rolled, and packed in a small box for easy sh...
COMMON : Correlation between body pressure dispersion and sleep
What are the conditions for a healthy sleep?When lying on a flat surface such as the floor or a spring mattress, a gap is created between the curve...
Memory Foam: Why is memory foam popular? Part 1
Western cultures, including North America, have been interested in quality sleep and more comfortable sleep, and have continuously developed mattre...
Memory Foam: Why is memory foam popular? Part 2
In this article,we're going to break down the differences between springs, latex, and memory foam, as well as their pros and cons, with no memory f...
MEMORY FOAM: MDI, VOC, and Deodorization
Healthy Memory Foam? A healthy sleeping environment should be maintained even during sleep. GrandRest's memory foam uses 100%...
About Eco-Friendly
Eco-Friendly Foam Eco-friendly foam refers to foam products that are produced using environmentally friendly processes that do not harm the env...
GEL FOAM: The solution to the heat problem during sleep, I-GEL.
Memory foam provides a cozy and comfortable sleeping experience by conforming to the curves of the body. Most companies that sell memory foam ma...
What is memory foam?
While we already know that memory foam mattresses are good for getting a good night's sleep, many people may not know exactly what memory foam is a...