[mattadams]

Be very careful with screwing with your sleep cycle. Our bodies and to some extent our minds are hardwired to depend on the natural rhythm caused by daylight/night-time. Obviously this is pretty easy to mess with thanks to artificial light and the cross-over of light spectrums.

There are chemicals in our brains which are only produced by certain rhythms, not to mention the need for sunlight and vitamin D. Being especially hard on your body can be detrimental to your long-term health and when we sleep is almost certainly as important as how much sleep we get.

I write this as someone who has a very tough time on both counts and is seriously envious of his wife who gets good sleep at the drop of a hat.