Sleeping positions

Now that we have talked about good mattresses and pillows the next logical topic would be proper sleeping techniques.
Sleeping on your back or side are great choices. It is not a good idea to sleep on your stomach at all. Stomach sleeping forces you to sleep in a way that doesn't allow you to have proper alignment of your spine. Most stomach sleepers have to turn their head to one side or the other, and have an arch in their lower back. Both of which are not good for your spine.
The preferable ways would be on your back or side.
Back sleepers should look for a great pillow with cervical support. There are many brands out there, but I personally would stay away from anything that gives you flexion in your neck while laying on your back. This causes excess stretching of your spine all night long. Also when sleeping on your back, it isn't a bad idea to put a pillow under your knees. This allows your lower back to drop its arch position.
Side sleepers should also look for a great pillow but this time it needs to be the depth of their head to bed length. Some side sleepers sleep totally on their side and others roll their shoulder forward while sleeping so you have to decided which one you are and pick the perfect size pillow for you. Also, side sleepers should have a pillow between their knees and keep their knees bent at the same angle. If you put one knee forward that will allow twisting in your lower back which can be a cause for morning discomfort in your lower back.
If you alternate between back and side sleeping then you need to look for a neck pillow that will accommodate either position. They are out there. I sell some in my office. Also a good body pillow is great that you can put either under your knees or between them depending on your position.
I know that this sounds like a lot of work, especially while you are sleeping. I know it is possible because I am living proof.
One final note: When your spine is in alignment it makes it much easier to sleep in a proper position and much harder not too.