Please choose the correct ending to complete the given sentence: Health: [header] How to sleep with a pinched nerve [title] Use a firm mattress. [step] A firm mattress will support your body better, which may prevent your body from folding in on the nerve and making it hurt more. If your bed does not have a firm mattress, then you might consider sleeping on your sofa or in a recliner for the night.

Ending1: [substeps] If you have limited options, such as sleeping on a sofa, you may use a firmer mattress. Mattresses that are too soft can cause fractures, scars, and other health issues, which can worsen your pinched nerve. Ending2: [substeps] If you cannot find a firm mattress when you first wake up, then get a contour mattress. Some mattress manufacturers will change sheets or pillows based on your other preferences. Ending3: [substeps] You can also place a few boards under your mattress to increase the firmness and prevent it from sagging. Another option is to put your mattress on the floor until you have recovered from your pinched nerve. Ending4: [title] Put a box spring or knee pad under your bed. [step] A soft and comfortable bed can reduce the pain caused by the pinched nerve.

Answer format: ending1/ending2/ending3/ending4