Instruction: Answer the given question using the supporting document.

Input:
Question: Will a regular store bought pillow case fit or does it need a custom case?
Document: One size does not fit all, and Dr. Bob has taken this into consideration. You order the size pillow you need based on your t-shirt size. I find the size perfect for me.The pillow came wrapped with a little carrier, There was no funky smell as there sometimes is with memory foam.
I bought this myself, didn't get a sample...On the whole I do like it. I had a Healthy Back Store pillow for a long time and it was getting kind of squashed. I like the shape of it, with the part that extends into the corner between your neck and shoulder. You do have to sort of learn to sleep on it - can't just stay in the middle if you're a side sleeper, you have to roll to the other end of your pillow...
I would recommend this pillow. Very comfortable sleeping. As close to a custom pillow as I can get.
To me, that says it all.PRODUCT QUALITYThis pillow ships in a lightweight plastic soft case with a handle, which can be used to transport the pillow if needed. It has a soft velour cover which is washable. The pillow has a very faint memory foam scent, which I get a whiff of (after 1 week) occasionally, but it's not overpowering.
Laying on my back in the center of the pillow felt very natural and comfortable. Sleeping on the sides of the pillow were also great, but I mostly use the center. I'll admit it would get a little warm every once and awhile, but maybe it's because of my pillow case (I haven't tried it without one)?
This is a seriously well-made memory foam pillow. I have the XX-Large size because I'm an XX-L person, and it's a perfect fit. I was amazed at how heavy this pillow is; no moving or sliding around the bed during the night.
Dr. Bob's Countour PLUS Memory Foam Bed Pillow is not just another memory foam pillow. It's a pillow that supports both back and side sleepers, and is 'sized' to fit its user.I received a sample product from Dr. Bob in exchange for my honest review.
I have tried several, including the ones with cooling beads, that are cool in the beginning but by the middle of the night they are warmer than regular pillows. I put it on the bed, laid on it, and I was instantly comfortable. The pillow was supportive, firm, comfortable on my right side, left side, and back.
This isn't your grandma's feather pillow. I think if I'd seen this in a store before trying it out I'd have thought it was a gimmick and wouldn't have bothered. I'm glad I tried it.The first thing you'll notice is that it is angled downwards, but that, counterintuitively, the "peak" of the pillow is supposed to face your feet, and the "valley" is where your head should rest.
I also put the pillow in a zipper cover and a pillow case so this helped as well. I am not sure how natural this pillow is or the safety or danger associated with the memory foam in the pillow, but I can tell you that after a few days of using this pillow the pain in my neck went away and I seem to be sleeping better. I am not sure why the little cut out and shape of the pillow are better than other pillows, but it seems to be magical for me.
Answer: Regular pillow cases will fit.