Kneel in front of the bed and place your elbows up on the bed about shoulder-width apart. Kneel far enough from the bed that you have room to sit back and drop your chest through your arms to extend your spine.

Then with your elbows on the bed, sit your butt back and relax your chest and head over, pressing your chest toward the ground so that you feel a nice stretch down your triceps and lats as well as through your thoracic spine. Try to extend your back as much as possible as you drop your chest toward the ground between your arms. Try to get your biceps by your ears as you extend your spine.

You can either hold here and breathe, relaxing deeper into the stretch as you hold or you can perform repetitions, trying to stretch further each time you repeat the stretch.