I just received this, so I cannot speak to the potential positive affects on my stiff neck as of yet, however I wanted to leave some feedback for other shoppers to help them. I was hesitant to order becuase there were no measurements for the different sizes, but then i saw the comment that the large or extra large is for a king size pillowcase (which i have). Recived it the other day and it ill-fits the pillow case, just like my standard pillow-excessive width, so excess just hangs/looks terrible. I have emailed the company as I think there comments are inaccurate and misleading. Let's see what happens. If you don't care about this and want a firm pillow, then you'll probably be fine. Remember to measure for your correct size.
I bought this pillow for myself and my wife stole it immediately!! By far the best pillow out there. My wife has worked for a chiropractor for 5 years-- we showed it to him. He loved it , they may start selling them from the office.
A customer who has purchased the reviewed product from Quill.
Great pillow! No more pain
I ordered this product after trying out at my chiropractor's office, it works GREAT for those who change from back to side sleeping throughout the night but takes a little getting used to. For the first week, I woke up when I switched positions, but now its awesome.
One note-if you're in between sizes, I highly recommend going down one size. My pillow is a slight bit tall for me on the side measurement. Another pointer-this pillow might be difficult to adapt to if you are a sleeper who puts one arm under your pillow-its a little too firm for that.