4. Find your most comfortable sleeping surface.

4. Find your most comfortable sleeping surface. Hard or soft, hot or cold - everyone has a preference. This is such an important investment: if you'd spend $30,000 on a new car that you sit in 3 hours every day, why balk at spending $300 on a bed you sleep in 8 hours every night? You might even favor the floor. This is fine too, as long as your body responds positively to it.