Are you still up late after your body has given you the fatigue signals? When you yawn after 8 PM do you drink caffeine to keep yourself awake because your chores are not complete for the day? If you do not get enough sleep then the stress of the lack is contributing to your inability to achieve your desired weight loss.
Why does sleep have so much effect on your Weight Loss?
When day is done and it gets dark out your body produces melatonin. This hormone reduces oxidative stress but it is more well known for inducing sleep. We need this hormone to improve the production of ATP which is an energy that is our life fuel. Many of the bodily repairs that go on while sleeping are linked to your amount of melatonin production. Literally we sleep less and in turn make less and that results in many different problems such as Mood, Weight, Allergies, Immune System Problems, etc.
Instead of going to bed when we are tired, we start drinking coffee, turning on lots of lights and watching action oriented TV or movies. This makes all of your hormones to go wacky! When it comes to weight loss the hormones are important. Melatonin is now held back and you start making more ghrelin (revs up appetite) and reducing the leptin (signals fullness).
I read that there was a Canadian study about 5 years ago that proved that people that only slept 5 to 6 hours a night were 69% more likely to be over weight compared to 8 hour a night sleepers.
Maybe when you are not losing weight the way you expect it is time to evaluate some of your lifestyle habits like your evening habits and sleep schedule.
Give your body a regular sleep and wake time. Remember your body has work to do when you sleep and it needs that time every night not just when it is convenient. Go to sleep when you are done for the night. You will start to improve even in your stress response and fatigue levels when you give your body a chance to re-charge its batteries.