At the same time, going to bed hungry can be just as disruptive to sleep as going to bed too full. Bedtime Snack Facts Do not eat or drink too much close to bedtime. Consider a small snack to ease bedtime hunger pains. Smokers and nonsmokers alike may not be aware that nicotine, like caffeine, is a stimulant. And when smokers go to sleep, they experience nicotine withdrawal.
Research suggests that nicotine is linked to difficulty falling asleep and problems waking up.
Smokers may also experience more nightmares. Giving up smoking may cause more sleep problems at first, but the long-term effect on sleep and health is much better. So kick those cigarettes goodbye. The next place to look for the cause of a sleep problem is your exercise routine. Exercise can be a boon for good sleep, especially when done regularly in the afternoon and not too close to bedtime.