Please choose the correct ending to complete the given sentence: Health: [header] How to sleep after a cervical neck surgery [title] Sit on the edge of the bed. [step] Getting in bed must be done carefully, as you do not want to put your neck at risk of injury. Start by sitting down on the edge of the bed, about halfway down the bed.

Ending1: [substeps] This way, you are less likely to get a shoulder bump. Make sure the front of your head and the side of your face are perpendicular to each other and that your knees are at the same height. Ending2: Put your feet firmly on the ground and keep your neck and back straight. [title] Lower yourself on your side, resting on your elbow. Ending3: If you have a stool or chair to sit on, set that down next to you. [title] Place your feet and knees on the bed floor in a row, palms facing upwards. Ending4: [title] Position your feet so that your toes are touching the bed, and your left foot is on the bed. [step] Keep your ankles together so that you cannot move your feet.

Answer format: ending1/ending2/ending3/ending4