The tips below will help you sleep comfortably after a hair transplant. Sleep with your head above the level of your heart using extra pillows, keeping it at about a 45-degree angle. This will reduce swelling. Avoid sleeping on your side or stomach since this exerts pressure on the site where the transplant was performed. Make as little movement as possible when adjusting your pillow or changing positions so as not to agitate the transplanted hair. Keep your head cool: Your room should be cool and comfortable enough to avoid sweating that might irritate the transplantation area.