User blog comment:Tekkphreke/Hints of Ichigo's heritage/@comment-4957813-20140121221714

As Dark said, this has no grounds as this is anime-only. The animators take creative liberty in what they animate. Therefore, whatever is shown in the manga will always trump the anime. So unless this bedsheet design in the anime is also in the manga, then it's crack theory at best. Also, I highly doubt Kubo would've planned that far ahead.