It's no problem to sleep on a mat when it's hot, but mattresses and quilts are still needed when it's a little colder in winter. Boys don't need to be too thick, just need a space quilt when the quilt is coldest.

There is only one fan in each dormitory, so it is not easy to fan it if you sleep in the upper bunk. I suggest buying a small fan.

Mosquito nets are used almost all year round, and there are too many mosquitoes.

Of course, it is not convenient to bring a quilt and a mattress fan. You can buy it here. The school sells them, and there are many supermarkets outside the south gate. You can choose freely when you arrive.

Wear sweaters instead of down jackets in the coldest time in the east. Attention, your home is in the north. It will be cold on the way home in winter. You should take thick clothes and wear them when you go back.