hello dear user; thanks for the query. May I know your age, current lifestyle, gender & occupation? Usually a sudden onset sleep problem with initiation difficulties & frequently interrupted sleep is suggestive of Depressive disorder or anxiety disorders. How is your appetite, overall mood, interest in various things like work, watching TV etc, your overall energy levels lately? is there any significant change in any or all of these? If yes, then your sleep problem is a part of underlying depression or anxiety. Hence, consult a Psychiatrist & ask for treatment like sleep hygiene, drugs like Mirtazapine, agomelatine, SSRI etc. which are non addicting & can cure your underlying mental illness & sleeping problems rapidly. Good Luck