tube member and a cup held within the tube member application_number US 201514736945 A description the problem that exists when a woman with sizable breasts sleeps in a recumbent horizontal position is illustrated in fig6 the chest wall 20 generally slopes downward as one moves from the center or sternal area towards the lateral chest wall the various configurations exist as a result of the basic patterns 20 u2032 seen in fig3 and the fact that there is a propensity for asymmetry in the human body largely because of asymmetry of the underlying skeleton the breast b tends to follow the contour of the chest wall with unusually close cleavage in conditions like those seen in fig4 this condition is known as pectus excavatum the chest configuration that is most desirable for maintaining youthful perky breast or keeping a desirable position of the breast following plastic surgery is the rectangular shape seen in fig5 in this situation there exists a stable horizontal support for the mass of the breast with or without a breast implant during the roughly 8 hours per day that a person sleeps they are in either the supine or prone position at least half of the time this rectangular configuration protects the circum mammary ligament from stretching out by supporting the breast in the horizontal position the worst condition of the chest for maintaining a youthful perky breast is that seen.