Hello Welcome to HCM. I have read your query carefully. I think as you have just recovered from a medical illness like typhoid, the sleep problem has occured in the process. I suggest you to take tablet zolpidem 5mg in night. Once your sleep-wake cycle normalizes, your sleep would be better. Also, avoid day-time nap, avoid tea, coffee and alcohol, dont listen to heavy music, have adequate exposure to natural day-light and practice relaxation exercises like deep breathing and yoga. Hope this helps you. Thanks.