Do you sleep on your back or your front?

你睡觉是仰着还是趴着？

《牛津词典》

If you go to sleep on your back, you are a very open person.

如果你是仰卧着入睡，说明你是一个性格开朗的人。

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If you sleep on your back: Place pillows under your knees to take the load off the lower back.

如果你喜欢平躺着睡觉，把枕头放到膝盖下，以便减轻背部下方的压力。

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As the evening comes to a close it is time to retreat back to your wooden four-post bed at Portland Harbor Hotel on Fore St for comfy sleep amid soft linens and fluffy pillows.

BBC: Art appreciation and more in Portland, Maine