Sleeping is probably one of the easies and most pleasurable ways of improving learning results. Having a good sleep both the night before and the one after learning activities gives energy for studies and improves memory. Building healthy sleeping habits and taking sufficient brakes will cumulate into a series of more productive days throughout one's life.
Taking the sufficient sleep and rest will require both planning and understanding your individual needs. Be also considerate towards the needs of others people - they may differ radically from your ones.
What could be improved in your sleeping habits and how?
What kind of opportunities does your team have for taking small breaks when needed?