prone
likely to experience a particular problem more often than is usual
skip
to not do or not have something that you usually do or that you should do
optimum
best; most likely to bring success or advantage
immune system
the cells and tissues in the body which make it able to protect itself against infection
disquieting
causing worry
hormone
one of many chemicals made in your body that make the body grow and develop
surge
to increase very quickly
urge
to strongly advise an action
head start
an advantage that someone has over other people in something such as a competition or race
take a nap
have a short sleep, especially during the day
fall asleep
to start to sleep
lie in
to stay in bed later than usual in the morning
light sleeper
someone who is easily woken up
fast asleep
sleeping deeply
snore
to breathe in a very noisy way while you are sleeping
under the covers
in bed, under the bed sheets
nod off
to begin sleeping, especially not intentionally
exaggerated
making something seem larger, more important, better, or worse than it really is
well-being
when someone is healthy, happy, and comfortable
deprivation
the state of not having enough of something
cast
all the actors in a film, play or show
invade
to enter a place in large numbers
trigger
to make something begin to happen
paralysed
unable to move or act
limb
an arm or leg of a person or animal
sleep on it
to wait until the next day before making a decision about something important so that you can think about it carefully
lose sleep (over)
to worry about something
beyond sb's wildest dreams
to a degree or in a way you had never thought possible
never dream of
never consider
dream job
the perfect job that you want more than any other
dream come true
something you have wanted very much for a long time that has now happened
get (your) beauty sleep
the sleep that you need in order to feel and look healthy and attractive
in (your) dreams
something you say to someone who has just told you about something they are hoping for, in order to show that you do not believe it will happen
have a bearing on
to have an influence on something or a relationship to something
burst
a sudden increase in something, especially for a short period
fragmented
consisting of several separate parts
insomnia
the condition of being unable to sleep, over a period of time
commonplace
happening often or often seen or experienced and so not considered to be special
ubiquitous
seeming to be everywhere
commitment
a willingness to give your time and energy to something that you believe in, or a promise or firm decision to do something
undervalued
if something is undervalued, it is considered to be less valuable or important than it really is