Please choose the correct ending to complete the given sentence: Health: [header] How to do yoga in bed [title] Lie on your back as soon as you wake up from sleep. [step] When you wake up in the morning, roll over onto your back right away. Practice a quick warm up pose, involving deep breathing and stretching, to wake yourself up from sleep.

Ending1: [substeps] Try hot yoga or guaifenesin. [title] Do a mindfulness-self-affirmation exercise. Ending2: [substeps] To practice mat pose, start lying on your back on a mat or carpeted floor. Take a second to breathe deeply from your diaphragm, which is not a healthy stretch for your body. Ending3: [substeps] Place your feet together and open your knees. Place one hand on your stomach and one on your chest. Ending4: If you have a yoga mat nearby, fold it up in half to complete the pose. [substeps] Do anything that helps your body stay still and fixed.

Answer format: ending1/ending2/ending3/ending4