Tigers DO live in the 'jungle', so are harder to find. In the wild, the two do not meet, so there was always a question as to who was the stronger. The lion LOOKED bigger, so was assumed to be stronger, but lions and tigers have different muscle structure, since lions run more in life, and tigers climb more.
Sleep Hygiene The most common cause of insomnia is a change in your daily routine. For example, traveling, change in work hours, disruption of other behaviors (eating, exercise, leisure, etc.), and relationship conflicts can all cause sleep problems. Paying attention to good sleep hygiene is the most important thing you can do to maintain good sleep.
Sleep hygiene constitutes the things you can do on your own to improve your quality of sleep. This includes going to bed at the same time every night and waking up at the same time every morning. Equally as important is not having any distractions in the bedroom such as lights on, TVs in the bedroom or lighted clocks.