In our daily life，we have developed a lot of habits，such as，eating habit，study habit，reading habit，etc．However，taking the time to develop a sleep habit is probably the last thing on your mind and some sleep advice simply can't be forgotten．（36）___．

Watching TV until you fall asleep

It has nothing to do with what you watch-TV news isn't a better pre-sleep choice than TV series．（37）___．The bright light keeps you awake all the night．So even if you nod off （in front of the TV，for example），you probably won't stay asleep for long．

Sleeping with pets

（38）___．They get comfortable，and then they move．This goes on all night，and whether you admit it or not，it interrupts your ability to get the level of sleep needed to feel rested．

（39）___

Remember how poorly you sleep when you have a fever-turning over and over again，never really feeling rested？Well，heavy exercise too close to bedtime has the same effect-it raises your body temperature so that your sleep is disturbed until your body temperature drops to normal，which may take several hours．

Accepting snoring （打呼噜） as normal sleep behavior

Snoring may seem as common as breathing，but it's considered the biggest sleep killer，and it's linked to several causes：sleeping on your back，being overweight，having a cold，drinking，or taking drugs．（40）___．For the snorer，it disturbs sleep by awakening him/her every so often in order to breathe normally．For the partner，the noise can be unbearable．

A．Exercising heavily too close to bedtime

B．Here are some bad habits you need to get rid of

C．Rather it's the TV's bright light that is the criminal

D．Here are some suggestions you'll need to follow．

E．Most seriously，it's caused by a dangerous illness

F．Pets sleep most of the day，and they move a lot when sleeping

G．Reducing your body temperature before bedtime．