As all human beings are unique in their way, so are their sleeping style and pattern. If you were to look into it you will notice that there are all kinds of sleepers. Some people can only sleep on their stomach while there are some who like to spread across the whole bed. Unlike them, some have an opposite style and like to curl up like that of a ball. Some of them find it relaxing to lay on their back. While the most popular and common position is that people like to sleep cervical pillow on their side. One thing is common about all these sleeping styles, that whichever may be the position it will be a deciding factor in deciding how you will feel the next morning and the whole day.