The head is proportionately a heavy part of your body. The average weight is 6.6 to 8 pounds. So your neck may end up feeling compressed, especially from long hours at your desk or from doing detailed work.
Here’s a way to lengthen the back of your neck. Use a wide strap with a looped to make a sling from which to suspend the back neck. The strap goes over a chair and then round the occiput (base of your skull). You can play around with the exact location so the strap is in an optimum position for you.
Stay for a 2 or 3 minutes, but you may find you want longer.