Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to patch a leak in an air mattress [title] Know that all air mattresses lose air naturally. [step] Before you decide to strip the covers off of you mattress and search for holes, know that no air mattress holds air indefinitely. You will naturally have to re-inflate your mattress whether or not you have a leak.

Ending1: With proper air mattresses, you can be able to slide out of your mattress and return to your mattress with ease. [substeps] If the leak is deep, the mattress may not handle air as much. Ending2: [substeps] Air mattresses leak by partially releasing pressure, causing your mattress to collapse and the air inside of your mattress to enter the small, unsightly holes. To get rid of a leak, you need to reshape your mattress. Ending3: [substeps] Cold air, for example, causes your mattress to shrink. As the house cools down at night, your air mattress will likely soften a bit as the air cools. Ending4: [title] Inspect the mattress over a night to find any damage. [step] Once the mattress has been stripped of its air, inspect it carefully for any obstruction.

Answer format: ending1/ending2/ending3/ending4