Portable head support

1. A portable head support having a dog-bone shape, comprising:

an upper portion having a top surface; and a lower portion having a bottom surface,

wherein the top surface includes a first lobe portion at one end along a longitudinal axis, X, a second lobe portion at an opposite end along the longitudinal axis, X, and an intermediate or shaft portion separating the first and second lobe portions,

wherein the intermediate or shaft portion has a length, L I , and a width, W I , with respect to the bottom surface,

wherein the first and second lobe portions each have a length, L L , and a width, W L , with respect to the bottom surface,

wherein the length, L I , of the intermediate or shaft portion is less than the length, L L , of the first and second lobe portions; and

wherein the width, W I , of the intermediate or shaft portion is less than the width, W L , of the first and second lobe portions,

wherein the intermediate or shaft portion has a height, H I , with respect to the bottom surface, and wherein the first and second lobe portions each have a height, H L , with respect to the bottom surface,

wherein the height, H I , of the intermediate or shaft portion is less than the height, H L , of the first and second lobe portions; and

wherein the bottom surface includes a groove extending the longitudinal axis, X, for allowing the portable head support to be removably mounted onto an object.

2. The portable head support according to claim 1 , wherein each lobe portion has an inner portion proximate the intermediate or shaft portion, and outer portion distal the intermediate or shaft portion and an apex therebetween.

3. The portable head support according to claim 1 , wherein each lobe portion has a generally convex profile, and wherein the intermediate or shaft portion has a concave profile when viewed from a front of the portable head support, thereby allowing a user to comfortably rest their forehead on the portable head support.

4. The portable head support according to claim 1 , wherein the first and second lobe portions and the intermediate or shaft portion has a generally U-shaped, convex profile when viewed from an end of the portable head support, thereby minimizing a surface area of the top surface that contacts a forehead of the user when in use.

5. The portable head support according to claim 1 , wherein a difference between the height, H I , of the intermediate or shaft portion and the height, H L , of the first and second lobe portions is about 0.5 inches.

6. The portable head support according to claim 1 , wherein the groove is substantially circular in cross-sectional shape with a diameter, D.

7. The portable head support according to claim 1 , wherein the groove extends entirely across the bottom surface of the portable head support.

8. The portable head support according to claim 1 , wherein the head support is substantially symmetric about the longitudinal axis, X, and a lateral or transverse axis, Y, thereby allowing the portable head support to be bi-directionally mounted onto an object by rotating the portable head support about a vertical axis, Z.

9. The portable head support according to claim 1 , wherein the lower portion has a profile that extends outward from the upper portion.

10. The portable head support according to claim 1 , wherein the bottom surface is substantially planar except for the groove.

11. The portable head support according to claim 1 , wherein the portable head support is of unitary construction and made of a flexible polyurethane foam material having a density of about 14 lbs/ft 3 .