At some point in their life 80% of people will be affected by lower back pain. Luckily there are sleeping positions that will help prevent back pain. Lower back pain can be a result of an awkward sleeping position. You should never sleep on your stomach. If your mattress is over 8 years old it could be contributing to your lower back pain. If that is the case then you might want to consider getting a new mattress.
Read more: Back pain: Best sleeping positions to prevent a painful spine