Agree with Texas Sue, after while "Gypsy Sit Upon" gives me a sore butt. BUT THE WORST PART regarding them is - Sometimes they bounce you when you sit down and it can throw you off the side. My friend and I both bought one at a quilt show and later, she also got bounced off hers and fell on the floor. SO BE CAREFUL WHEN YOU SIT DOWN ON IT. If you sit down off center, it can throw you off the chair. Maybe ours were just too overfilled with air. Has anyone else been thrown off their Gypsy Sit Upon???