Bed pillow

摘要

A bed pillow is made of elastic foam material. The pillow's top surface extends along both a longitudinal direction and a lateral direction that are mutually perpendicular, follows a top undulating pattern in the longitudinal direction, and is uniform in the lateral direction. The pillow's bottom surface is opposite the top surface, follows a bottom undulating pattern in the longitudinal direction, and is uniform in the lateral direction. The pillow's front surface and a rear surface extend from the top surface to the bottom surface, and are uniform in the lateral direction. The pillow has two laterally-opposite parallel planar side surfaces that extend from the top surface to the bottom surface and extend from the front surface to the rear surface.

主权项

1. A pillow comprising:
a top surface that
extends along both a longitudinal direction and a lateral direction that are mutually perpendicular,follows a top undulating pattern in the longitudinal direction, andis uniform in the lateral direction; a bottom surface that
follows a bottom undulating pattern in the longitudinal direction, andis uniform in the lateral direction; a front surface and a rear surface that
extend from the top surface to the bottom surface, andare uniform in the lateral direction; and two laterally-opposite parallel planar side surfaces that
extend from the top surface to the bottom surface, andextend from the front surface to the rear surface; wherein the top undulating pattern (i) is a first pattern with a front end and a rear end and (ii) is configured such that a second pattern identical to the first pattern dovetails with the first pattern if and only if the front and rear ends of the second pattern are respectively adjacent the rear and front ends of the first pattern; and wherein the pillow is made of elastic foam material and is usable as a bed pillow.