My pillow is too soft, was the first thought I had this morning. It is hard to know what is the best pillow to use. Some like goose down, some like fiber-fill, some like contoured foam. Like I said, there are a lot of choices so it is hard to know what’s best. I’ve tried everything, even the water filled, bean-filled, air-filled, foam-filled, etc. I always gravitate back to the fiber-filled. They come in different thicknesses depending on the way you sleep. The firmer thicker ones usually are for side sleepers. Typically the companies that sell pillows tell you on the outside what type of sleeper the pillow is for. The problem with pillows is they wear out. I replace mine every 2-3 months.
Position-wise, you should always be as symmetric as possible, with your head anyway. So, lying on your side, your nose should line up with the middle of your chest.
Back Sleeper:
Pillows under the knees helps reduce stress in the low-back.
Belly Sleeper:
The same thing, a pillow placed below the abdomen can reduce back stress in this position.
Overall, finding the best position to spend 6-8 hours a night can really help you to feel better throughout the rest of the day. Get chiropractic adjustments, get your sleep position right, and get the right pillow position and POOF! into it.
Createhealthchiropractic's Weblog 
Very good info! Thank you!
So many patients work on their posture, try to exercise and eat healthy, and then spend 6 – 8 hours per night ruining their spines! This information is invaluable to those people that can’t quite get their spine to how they want it.
Thanks for the comment! I agree, it’s amazing how many people ask about pillows and beds.