How long does it take for zzzquil to adjust a sleep cycle? ive been dealing with insomnia for four weeks. no medical conditions and in good health.

It won’t : Adjusting sleep cycle will not be accomplished by using sedatives. They are for temporary sleep interruptions. You need a sleep specialist to assess this. 4 months of insomnia does suggest that your cycle requires fixing. Good hygiene: bedroom cool, dark. Go to sleep and awake at same time. No caffeine after mid afternoon. No heavy exercise after mid afternoon. Review current Rx and OTC meds used.