\" \" If you often wake up in the morning with neck pain, constantly changing pillows is probably not helping and may even be exacerbating the problem. elenaleonova/Getty ImagesWaking up with serious neck pain is definitely not the way anyone wants to start their day. The problem is that neck pain can be very complex, both in cause and treatment, so what works for you one night might totally backfire the next. In fact, stomach-sleeping is one of the worst things a person with neck pain can do. \"Neck pain could be due to arthritis, disc pathology, spinal stenosis or plain muscle spasm,\" Sridhara notes.