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“A good night’s sleep is important in order to process information throughout the day as well as to repair and re-balance the body physically and mentally,” Dr Nerina Ramlakhan, a sleep expert at Silentnight, tells The Independent. “Ideally, in order for us to sleep well, there needs to be a fractional temperature difference between our body and our brain—a warm body and a cool head!”

So what can you do to calm yourself down and get a good night’s sleep? Here are some tips.

Wear cotton pyjamas and use thin, pure cotton sheets for your bed. High-quality cotton is the ideal bedding material for sleep to stay cool as it’s most breathable.

Make sure you’re not eating too much protein as this can actually heat your body up by boosting your metabolic rate, according to sleep expert Dave Gibson.

Eat spicy food, but at least three hours before bed. It can make you sweat, which cools the body down.

Exercise in the morning rather than evening to stop your body getting too hot.

Contrary to the popular belief, Gibson says we should keep windows closed during the day to keep the house cooler. Keep the curtains closed, too.

Turn off all electrical devices in the bedroom as these emit heat. Switch off sockets, too.

Keep your feet cool, either by keeping them outside the covers or resting on an ice pack.

1.How can we sleep well according to Dr Nerina Ramlakhan?

A We should keep a warm body and a cool head.

B We should keep a cool body and a warm head.

C We should process information well throughout the day.

D We should repair and re-balance the body physically and mentally.

解析：选A。细节理解题。根据文章第一段最后一句“Ideally, in order for us to sleep well, there needs to be a fractional temperature difference between our body and our brain——a warm body and a cool head!”可知，为了让我们睡得好，Dr Nerina Ramlakhan建议我们的身体和大脑之间需要有一个小小的温差，即身体要温暖，而头部要凉爽，故选A。

2.Why should we wear cotton pyjamas and use pure cotton sheets?

A Because they are beautiful.

B Because they are breathable.

C Because they can heat our body up.

D Because they can make us sweat.

解析：选B。细节理解题。根据文章第三段第二句High-quality cotton is the ideal bedding material for sleep to stay cool as it’s most breathable.可知，棉质床品透气，故选B。

3.What do we usually do during the day to keep the house cooler?

A Keep windows open.

B Keep windows closed.

C Keep the curtains closed.

D Keep the door closed.

解析：选A。推理判断题。根据文章第七段Contrary to the popular belief, Gibson says we should keep windows closed during the day to keep the house cooler. Keep the curtains closed, too.可知，与普遍的看法相反，我们应该在白天把窗户关起来，拉上窗帘使房子保持凉爽可推断我们通常是把窗户或窗帘打开来使房子保持凉爽，故选A。

4.The underlined word “emit” may mean _____ in Chinese.

A 减少

B 保持

C 感受

D 散发

解析：选D。词义猜测题。根据文章倒数第二段内容可知，专家建议“关掉卧室里所有电器和插座。”因为这些电器或插座会“散发”热量，故选D。

5.What’s the best title for this passage?

A Why to get a good night’s sleep during a heatwave.

B We should keep our feet cool during a heatwave.

C How to get a good night’s sleep during a heatwave.

D Try to exercise in the morning to stay our body cool.

解析：选C。主旨大意题。文章第二段So what can you do to calm yourself down and get a good night’s sleep? Here are some tips.这是文章的主旨，即专家支招让我们在酷暑天晚上睡得更好，故选C。