Pillow

Abstract

A main supporter of a pillow has surface contact with and applies pressure on, at least, first and second regions between superior and inferior nuchal lines on an occipital bone of a supine person. The first region ranges from a left end of a portion of a trapezius muscle to a portion of a left sternocleidomastoideole; both the portions attach to the occipital bone. The second region ranges from a right end of the portion of the trapezius muscle to a portion of a right sternocleidomastoideole attaching to the occipital bone. A sub-supporter of the pillow, which is lower than the main supporter, applies pressure on the head on a superior side of the superior nuchal line. The pillow lacks members under, at least, a region from the first to second cervical vertebrae and a region of the temporal muscle; the members apply pressure on the regions.

1 . A pillow comprising:
 a main supporter being an elastic member protruding upward and configured to support, at least, first and second regions between superior and inferior nuchal lines on an occipital bone of a supine person by having surface contact with and applying pressure on the first and second regions,
 the first region ranging from a left end of a portion of a trapezius muscle of the person to a portion of a left sternocleidomastoideole of the person, both the portions attaching to the occipital bone, 
 the second region ranging from a right end of the portion of the trapezius muscle to a portion of a right sternocleidomastoideole of the person attaching to the occipital bone; 
   and   a sub-supporter being an elastic member designed to be lower in supporting position than the main supporter, the sub-supporter configured to support a portion of a head of the person on a superior side of the superior nuchal line by applying pressure on the portion of the head, wherein   the pillow lacks members under, at least, a region ranging from the first to the second cervical vertebra of the person and a region of a temporal muscle of the person, the members configured to support the regions by applying pressure thereon.   
     
     
         2 . The pillow according to  claim 1 , wherein
 the main supporter includes:   a left-sternocleidomastoideole supporting portion configured to support a portion of the left sternocleidomastoideole by applying upward pressure thereon, the portion of the left sternocleidomastoideole attaching to a region on a left temporal bone of the person, the region ranging from the superior nuchal line to a mastoid process; and   a right-sternocleidomastoideole supporting portion configured to support a portion of the right sternocleidomastoideole by applying upward pressure thereon, the portion of the right sternocleidomastoideole attaching to a region on a right temporal bone of the person, the region ranging from the superior nuchal line to a mastoid process.   
     
     
         3 . The pillow according to  claim 2 , wherein
 the main supporter is formed such that the left- and right-sternocleidomastoidmuscle supporting portions are higher in supporting position than a center portion of the main supporter.   
     
     
         4 . The pillow according to  claim 1 , further comprising
 a main limiter being a protrusion located on an opposite side of the sub-supporter from the main supporter and higher than the sub-supporter, the main limiter configured to prevent superior displacement of the head.   
     
     
         5 . The pillow according to  claim 1 , wherein
 the main supporter is tilted or curved such that lateral portions thereof further away from a center portion thereof in a left-right direction of the person are nearer to a shoulder of the person.   
     
     
         6 . The pillow according to  claim 2 , further comprising
 a main limiter being a protrusion located on an opposite side of the sub-supporter from the main supporter and higher than the sub-supporter, the main limiter configured to prevent superior displacement of the head.   
     
     
         7 . The pillow according to  claim 3 , further comprising
 a main limiter being a protrusion located on an opposite side of the sub-supporter from the main supporter and higher than the sub-supporter, the main limiter configured to prevent superior displacement of the head.   
     
     
         8 . The pillow according to  claim 2 , wherein
 the main supporter is tilted or curved such that lateral portions thereof further away from a center portion thereof in a left-right direction of the person are nearer to a shoulder of the person.   
     
     
         9 . The pillow according to  claim 3 , wherein
 the main supporter is tilted or curved such that lateral portions thereof further away from a center portion thereof in a left-right direction of the person are nearer to a shoulder of the person.