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wake up on the wrong side of (the) bed

To be in a particularly and persistently irritable, unhappy, or grouchy mood or state, especially when it is not in line with one's normal disposition. I'm sorry I snapped at you earlier, I think I just woke up on the wrong side of the bed today. Jeez, the boss has been in a really bad mood all day. I guess he must have woken up on the wrong side of bed!
See also: bed, of, on, side, up, wake, wrong

wake up to (something)

To become alert to or aware of something, especially something that needs to be recognized as a problem. You need to wake up to what's happening instead of ignoring the situation. If this country doesn't wake up to the hatred that's among us, we're going to have a bleak future.
See also: up, wake
References in periodicals archive ?
One of the worst things that can happen when using alarm clocks or alarm clock apps is waking up to your spouse's earlier alarm when you don't have to wake up yet.
Schenk (a practicing clinical psychologist in Atlanta, GA) uses hypnosis in his therapeutic practice in order to induce clients to go through waking dreams during therapy in which they see themselves as "dream characters" and typically experience the death of the characters towards the end of each waking dream.
That can cause problems, he explained, when there is napping and a somewhat early bedtime despite a late waking hour.
While there were few movies to rival Waking Life in its galvanizing, shoot-first-think-later non-commercialism, Sundance featured many movies that reflected Linklater's edge-surfing spirit.
Nursing home residents sleep approximately 66% of the time spent in bed, and 15% of waking episodes are related to incontinence care.
In the study, sleep disturbances consisted of regularly being awake for at least 10 percent of the night after falling asleep or waking three or more times during the night for at least 5 minutes each time.
Insomnia patients suffer from a) difficulty falling asleep; b) difficulty maintaining sleep due to waking up frequently during the night with difficulty returning to sleep or due to waking up at early hours and c) unrefreshing sleep.
One of the effects associated with perimenopause and menopause is increased incidence of waking up during the night and an inability to fall back to sleep, principally due to hot flashes," said Claudio N.
Those changes may frequently be accompanied by symptoms of insomnia such as waking up during the night and difficulty falling back to sleep, particularly in the presence of hot flashes," said Claudio N.
Sometimes, these children are very active and have a strong need to control during their waking hours.
In the National Sleep Foundation's Sleep in America Poll 2005, 42 percent of survey respondents reported they awoke frequently during the night, 22 percent of adults report waking too early and not being able to return to sleep and 38 percent surveyed reported waking and feeling unrefreshed.
The burglar moved on to a neighboring house, where he shattered the kitchen window and yanked the mini-blinds off the window frame, waking up the resident, Harvey said.
In a Gallup Sleep in America poll, 22 percent of adults surveyed reported difficulty falling asleep and 43 percent reported problems associated with waking up at night.
Call Waking Bailey a basketball player because it's basketball season.