When you’re awake at night, remember to be mindful because if the mind isn’t, it’ll start to think. If you just leave the mind alone at night, if you don’t give it work to do, thinking will proliferate – it’ll think of happy, sad, exciting, or boring things – and that tires the mind.

When the mind is aimless wondering and thinking, it tires the mind. If you give the mind work to do – when it’s mindful whenever you’re awake – then, there’s no problem.

So long as what you’re cultivating in the mind while you’re awake is wholesome – whether it’s metta, or awareness, samathi and wisdom – if all that are working, then you don’t have to worry about getting as much sleep as other people do.

The mind shouldn’t be getting momentum in becoming unwholesome as when the mind is aimless.