Of course stress and sleep are related.
The cure for insomnia is sometimes complicated. For one person the secret could be home remedies for insomnia (as simple as listening to their favourite sleep music, meditating to relax, high quality herbal teas, vibrational essences – similar to Bach flower remedies, etc).
But for others the cure for insomnia might only be found by investigating 10 food additives and colourings that they might be sensitive to, learning a tapping procedure to reduce their anxiety, resolving issues from the past (that they may or may not even remember!), etc.
And all this can be done, thankfully.