Instruction: Answer the given question using the supporting document.

Input:
Question: what size is this pillow?
Document: Just know that it is a softer memory foam so if you want a very firm pillow this isn't for you. I got a Queen size pillow which is a great size for me. I'm going to try it with my silk pillow case and I hope you can get the same cooling effect from different pillowcases, they will have to be on the thinner side though most definitely to make sure you don't loose that quality.
I really wanted to love this pillow! But, it wound up going back to Costco where I'd purchased it after 12 days of unsuccessfully airing it out. I stripped away the cover and allowed the pillow to begin eliminating the latex type smell. It  really stunk up my well ventilated garage for the first 3 days then the smell lingered yet never went away. It looks like a great, comfortable pillow. The size is so generous, but personally, I couldn't keep it due to the stench.
Quick delivery! Just as I expected. Comfortable pillow.
This pillow does not work for me. It's way too hard & not cooling at all. I do not recommend!
It didn't work if my hair was between my neck and the pillow. This one is getting returned.
am very happy with this pillow, it is very comfortable. I have neck problems and so far this has helped.
It is a memory foam type pillow which compresses when you lay on it (releasing the smell! ).
Too dense, too hard and the pillow did not stay cool. That part was extremely disappointing. It was just not a comfortable pillow.
The pillow seems to be well made. But it does not stay cool or keep me from flipping the pillow over. It doesn't do what it claims it will do.
The pillow is cool for the first few minutes then it warms to your body temp and does not keep you cool. Not very satisfied.
Answer: William it's a standard size but  a little extra deep. The regular pillow slips fit. I hope you are as happy with your as i am with mine.