Cover a few catties in two or eight days.

It is advisable to cover a quilt of about 3-4 kg in 28 days.

Spring and autumn is a transitional period, not suitable for quilts that are too thick or too thin. If it is too thick, it is easy to press the chest. If it is too thin, it will make your hands and feet cold and lead to insufficient sleep, so a quilt of about 3-4 kg is more suitable.

February and August refer to the lunar calendar. Beginning of spring or beginning of autumn, so to speak.

Beginning of spring is the first of the 24 solar terms in the lunar calendar. When the sun reaches 3 15 degrees, it will be the beginning of spring solar term.

Beginning of spring is one of the important traditional festivals of the Han nationality. "Li" means "start". Since the Qin Dynasty, China has always regarded beginning of spring as the beginning of the Meng Chun season. Beginning of spring is divided from astronomy, with spring flowers and flowers; Spring is growth, cultivation and sowing.

Beginning of autumn, the13rd solar term among the 24 solar terms in the lunar calendar, is the first solar term in autumn, marking the official start of the Qiu Meng season. "Autumn" means cool in summer.