xià / tiān / shuì / jiào / de / shí / hòu / diàn / gè / bīng / zhěn / , / néng / ràng / rén / gǎn / jué / gèng / liáng / shuǎng / 。夏天睡觉的时候垫个冰枕,能让人感觉更凉爽。Using an ice pillow when sleeping in summer can make you feel cooler.