Arm protector head rest

A head rest comprising a spine member having an upper surface, a lower surface, and front and rear ends, the upper surface comprising a generally forwardly facing portion and a generally rearwardly facing portion, wherein the generally forwardly facing portion includes a first concave portion for receiving the head of a user, the front and rear ends are configured for contact with a resting surface and, between the front and rear ends, the lower surface defines a passageway dimensioned to receive at least one arm of the user, wherein the spine member has sufficient rigidity such that when the user's head is resting on the spine member, the at least one user's arm may be positioned in the passageway in a manner that does not require the at least one user's arm to support the weight of the user's head, wherein the generally forwardly facing portion and the lower surface of the spine member gently curve upwardly from the front end towards the passageway, the generally rearwardly facing portion and the lower surface of the spine member also curve upwardly from the rear end towards the passageway but at a greater angle than the front end in order to maintain the user's head and neck in a proper alignment position when the user is sleeping or resting on his or her side.