Insomnia - Seroquel for sleep. are the effects immediate?

My psych gave me 150mg and said he'd like me to go to 800mg. Forget that. With 200mg. I slept. But hang over next day for like 4hrs. Wasn't my normal self. I stay away from it. BuT everybody's body is different.

My n=1 experience is that Seroquel works quickly and persistently with no cumulative impact. WRT dosage, I started at 50mg and quickly down-dosed myself to-to 6.25 mg--where I found my sweet spot, which for me was enough of a dose to slide into sleep and pretty much always sleep soundly until shortly before sunrise... at which point I lay there, relaxed about being awake so that sometimes I drift back to some kind of slumber. I wake up a bit groggy but nothing that some yoga and a cup of joe can't remediate. Key for me: just because you're dosing doesn't mean you're off the hook when it comes to sleep perfectionism. Accepting that a low dose sometimes leaves me awake in the middle of the night is part of the deal. I'm not a robot, I just want to be cut a break now and then.

Seroquel helped me sleep immediately but I was on a much higher dose. Your Dr needs to increase your dosage for you. When you get the proper amount of Seroquel in your system it will work like a miracle. Good luck and God bless you

Gone fishn!
No, it should work almost immediately... I take it near bedtime and within 20-30 minutes I'm drowsy and ready for deep sleep.
That being said, Seroquel can commonly cause agitation, anxiety, and ironically, some insomnia in a few sensitive people. This is usually temporary and I'd give it a few more days (nights). If it doesn't resolve quickly let your doctor know.
Best regards and I hope you're getting your Zzz's very soon.
Wildcat