This video shows you the set up for reclined supported butterfly pose. You will need pillows, blankets, blocks, and an eye pillow.
Once you know the set up you will decide how long you want to stay in the posture for. I recommend 20 min-60 min to deeply allow your body to rest and restore.
I highly recommend downloading the Free App Insight Timer: https://insighttimer.com/ I love the timer feature to keep track of how long i want to stay in the posture for.
If you feel like you would like music I recommend using binaural beats. Here is a Spotify playlist that I enjoy: https://open.spotify.com/playlist/7GrORISIfPBrwOQYDDnGmQ?si=MRJoCq-5RkSA1Y5D_bQcEA