“Memory foam is made from polyurethane. This is a type of plastic you’ll find in a variety of products, such as sofas, mattresses, insulation, and spray foam. It gets its name from the fact that it can change shape under pressure, but return to its original shape when the pressure is gone. This lets it adjust to your individual shape and gives you extra head and neck support...

Poor posture during the night interferes with a person’s quality of sleep and can lead to aches and pains during the day. The individual might also experience neck or back pain when they wake up. Pillows are important because they keep the head aligned with the neck and backbone during sleep. If a person’s spine or neck is not in a neutral position...

waking up and going to sleep at the same time every day, including at weekends. having a relaxing bedtime ritual, such as having a warm bath or reading a book. avoiding napping during the day. exercising daily. making sure that the bedroom is cool, quiet, and dark. using a comfortable mattress and pillow. avoiding cigarettes and alcohol. avoiding heavy meals...