I consider this pose the ultimate restorative pose. When set up well, your entire body is supported with props for ultimate muscle release. Keeping your chest elevated will make pranayama, breathing exercises, much easier. Of course, it's an absolute bonus if you can share your practice with another living being, especially one small enough to act as a sandbag on your belly.
So...what's the best set-up?
Well, like so many restorative poses, it all really depends on your preferences. Some people love a big arch for their low back, while others prefer something subtler.
Once you have your bolster set up, make sure your arms and legs are supported and comfortable. You can use blankets or blocks, or even folded pillows.
Of course you can place an eyebag on your eyes, but for added ease and comfort, place one in each palm.
Practice the pose for as long as you are comfortable. If you are extremely fatigued or overwhelmed, set a timer and allow yourself to sink deeply, maybe even to the point of falling asleep. Some days you will be able to practice a calm, slow, meditative breath, and other days you can practice letting go of focusing on anything at all.