Dreaming of a blanket means seeking out warmth and protection. In relationships, you will have a natural tendency to become as intimate as possible because that is how you will establish a warm relationship with the other person. In facing challenges, you will seek out stronger mentors and peers to garner their support in your endeavors.
Be aware that you will receive what you seek, remember to reciprocate, otherwise your blanket can be taken away from your as quickly as it was received.