Nicodemus was one of the 70 members of the Jewish Sanhedrin and a secret disciple of Jesus. He occasionally came to speak with Jesus at night. Jesus' one piece robe mentioned here was woven by Nicodemus' wife, Martha, and was presented to Jesus by Nicodemus on one of these night-time visits as a thank-you gift, after Jesus had raised a relative of Nicodemus from the dead. Nicodemus' relative was the widow of Nain's son. See Luke 7:11-15
Excerpt from Chapter 27 of The Soul of Jesus.