Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to sleep during menopause [title] Use a cooling pillow or mat. [step] Hot flashes can really do a number on your sleep. To fight them, you can find pillows that are specifically designed with cooling gel or water inserts.

Ending1: These can help lower the intensity of your hot flashes, making it easier to sleep through them. [substeps] These pillows are available online, as well as in some mattress and home goods stores. Ending2: This can help relieve your menstrual discomfort and any long-term side effects, including cramps. [substeps] When using a cool pillow or mat, try placing it between one and two inches (2.5 to 5.1 cm) of space between your shoulder blades and the edge of your mattress. Ending3: These will keep your head and neck cool throughout your sleep cycle. [substeps] Use a cool gel pillow or mat if you have trouble sleeping. Ending4: If you are in bed at night, the cold may also help some sleep. [substeps] Try using a cover under your bed to protect you from the sun.

Answer format: ending1/ending2/ending3/ending4