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Most people can go six or seven hours in the day time without needing to go to the bathroom. At night, urine production is also hormonally repressed.

If you wake up every night and need the bathroom, you didn't wake up because you need the bathroom - you woke up because your sleep was poor and then you noticed you needed the bathroom.

As you improve how deep your sleep is you'll not need to get up. If you're over sixty then this might not always be true but for any one younger than fifty you shouldn't need to get up to go to the bathroom.

Try drinking all your fluid by 3pm to start off with.