Text messages go out ONLY for shop updates, and will not be sent to you in the middle of the night. Text messages will not alert you about sales events, giveaways, and the like. That's what my newsletter is for.
You'll still receive my newsletter as long as you are subscribed to it. This SMS alert is just an additional help if your internet access is spotty, or if you can't wait to snatch a spot on a semi-custom warp or one of those elusive owl plushies.