A bed is a piece of furniture which is used as a place to sleep or relax. Most modern beds consist of a soft, cushioned mattress on a bed frame, the mattress resting either on a solid base, often wood slats, or a sprung base. Many beds include a box spring inner-sprung base, which is a large mattress-sized box containing wood and springs that provide additional support and suspension for the mattress. Beds are available in many sizes, ranging from infant-sized bassinets and cribs, to small beds for a single person or adult, to large queen and king-size beds designed for two people. While most beds are single mattresses on a fixed frame, there are other varieties, such as the murphy bed, which folds into a wall, the sofa bed, which folds out of a sofa, and the bunk bed, which provides two mattresses on two tiers. Temporary beds include the inflatable air mattress and the folding camp cot. Some beds contain neither a padded mattress nor a bed frame, such as the hammock, which is considered one of the most comfortable places to rest while swaying side to side. Some beds are made especially for animals. Beds may have a headboard for resting against, and may have side rails and footboards (or "footers"). "Headboard only" beds may incorporate a "dust ruffle", "bed skirt", or "valance sheet" to hide the bed frame. To support the head, a pillow made of a soft, padded material is usually placed on the top of the mattress. Some form of covering blanket is often used to insulate the sleeper, often bed sheets, a quilt, or a duvet, collectively referred to as bedding. Bedding is the removable non-furniture portion of a bed, which enables these components to be washed or aired out.
Bàn gỗ tự nhiên, kiểu dáng tân cổ điển.
Bạn sẽ học được gì? - Học phần các bạn sẽ học trong khóa học này: + Autocad nâng cao: Hướng dẫn chi tiết các dùng, cách quản lý, cách làm tỷ lệ bản vẽ một cách chi tiết và đầy đủ nhất. Cách dùng Lay...
Bộ video là các hướng dẫn đơn lẻ chia sẻ với các bạn về cách thức làm việc và xử lý tình huống của mình trong quá trình làm việc với Autocad. Các bạn cùng theo dõi nhé.