Baby blankets are often rectangular and measure about 30 by 40 inches. Receiving blankets tend to be smaller and typically measure about 30 inches square.
Baby blankets are available in a variety of fabrics, including 100 percent polyester or cotton, cotton and acrylic blends, or cotton and rayon blends. Receiving blankets are typically 100 percent cotton.
It is safe for parents and caregivers to firmly swaddle infants in receiving blankets. However, loose bedding should not be put into babies' cribs until little ones are at least 1 year old. Some pediatricians recommend waiting until toddlers are 2 before introducing blankets for sleeping. Until that point, footed pajamas or sleep sacks keep youngsters warm.