Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to sleep with carpal tunnel syndrome while pregnant [title] Sleep on your side. [step] Sleeping on your side allows for good blood flow for both you and the baby, and helps to prevent unwanted problems from developing. Your left side is the preferred side, but either side is fine.

Ending1: However, babies sleep longer if they sleep side-on. [substeps] Open the curtain or turn down the heat if you sleep on your side. Ending2: [substeps] Bend your knees and place a pillow between your legs. As your pregnancy advances, you may find additional relief from placing a pillow behind your back. Ending3: Sleeping on your side can take anywhere from six to eight hours but because of this, health care providers recommend that you only sleep on your side for at least six hours. [substeps] If you find yourself staying up too much, try adjusting your changing positions; this way you can improve your sleeping rhythm. Ending4: [substeps] Keeping your left arm straight out for support against your body, while you sleep, can also help keep your balance. Sleeping on your side can cause strain on the joints and muscles, which may make it difficult to remain in your current position for longer, preventing carpal tunnel syndrome.

Answer format: ending1/ending2/ending3/ending4