it provides a comfortable sleeping place as you have more room to sleep comfortably. is it necessary for us to always be last…you, know, if anything is left over. it is a simple but powerful enough mechanism to deal with it. see how you can easily learn to practice meditation whenever you need it most. less force = not hitting as hard. in case you are wanting forward to planning an out of doors adventure travel vacation with family or pals, you could learn on. this 1 story home was built on 4 acres (all yard) with a paved driveway and large deck! 