A multi-position support apparatus including a base for supporting the apparatus on a flat horizontal surface, a tiltable frame assembly tiltably supported on the base in a selected position; a body supporting member supported on the tiltable frame assembly; and a feet-engaging member engageable with the bottom surface of the user's feet. The feet-engaging member is coupled to the tiltable frame assembly, and the body supporting member is configured to move in relation to the tiltable frame assembly and below the feet engaging member. Optionally, the body supporting member supports a mattress. When the body supporting member moves, the mattress supported by the it moves also, thereby achieving a relative movement between the feet-engaging member and the mattress and thereby to prevent sliding of the user's body with respect to the tiltable frame assembly when the body supporting member is moved to a vertical position. The multi-position support apparatus is capable of changing its height and angle in relation to the ground and moving from an approximately vertical position to an approximately horizontal position.