Silk or cotton pillowcase?

Hi all, I have little 2 week old babies on my super straight, fine, tends-to-be-very-oily hair. I have read several places that a silk pillowcase is recommended to help hair stay together while dreading. I also read that silk dries hair out less than cotton. Would you guys recommend getting a silk pillow cover to sleep on, or sticking with my cotton ones? I know it's part of the process, so I'm not worried, but I've got loose hair all over the place, and it seems like more each day.Thanks!
updated by @mama-jme: 01/13/15 09:40:17PM

Everyone on here pretty much say a wool pillow case or a wool sweater over your pillow

Loose hair is what you want. It is from these that dreads are eventually formed. Maybe a cotton pillowcase is better because it seems, to me at least, that it would cause more hair to become loose and then tangled back up into the dreads. I wouldn't worry if your using a silk pillowcase though. I'd say its more the act of moving your head during the night that helps dreading, rather then the pillow texture.

Hmm...wool sounds intriguing, but I already sleep so poorly that I'm not sure I would do well with a textured pillowcase (even hough I LOVE wool!). I read an explanation of the silk recommendation, that when you use one all of the friction and pulling takes place between your hairs, helping it lock together more, vs a cloth that pillow the hairs away from one another. I'm sure it really isn't a big deal, but I need a new pillow case and was considering trying a silk one.

No harm in that then. I'd say it would feel amazing to sleep on.

Perhaps I'll try it as an experiment and report back

Sounds good, I got some three month old locks that would probably enjoy trying out silk/cotton/wool pillow cases!=)

I switched from silk to wool and there was visible progress in my knotting. A lot more loose hairs but those will come together in time.