How can I stop sleeping so much?

Question As-salamu `Alaykum warahmatullah wabarakatuh (May Allah's Peace, Mercy, and Blessings be upon you!). I suffer from deep sleep to the extent that I do not hear the Adhan of the masjid which is few meters away, could you kindly guide me? Jazaka Allah Khayran. It is important to mention that I noticed when I change my sleeping place outside the house, my sleep becomes light and I wake up fast; could you kindly help me and tell me what should I do to avoid deep sleep? Answer Dear valued brother, peace be upon you. What you suffer is not a disease that [...]