You ARE allowed to remove the tags from your mattress

You are allowed to take the tags off of your mattress.

Common fodder for many an aspiring comedian, the mattress tag usually states:

Under Penalty of Law
This Tag Not To Be Removed
Except By The Consumer

Okay, notice the operative word consumer

The consumer is allowed to remove the tag.

CONSUMER:   One that consumes, especially one that acquires goods or services for direct use or ownership rather than for resale or use in production and manufacturing.

So, if you are the user of the mattress, you are the consumer, and you are allowed to rip that sucker off.