Also my doctor has me on 20mg of ambien a night. Some people say it is not addictive, but I sure am having a hard time with stopping ambien.
try melatonin it has helped me and detox of methadone and Tylenol pm . never realized how important it is till its gone.
I don't have a great answer for that. They certainly have sedative effects, and all sedatives mess with sleep; people on benzodiazepines chronically usually end up with sleep problems as well. Whenever a sedating medication is wearing off, the withdrawal includes activation, which disrupts sleep-- and people on opiates for a long time will attest that they seem to always be withdrawing!
I will do some reading and see if I can find a more 'scientific' answer-- something including circadian rhythms and corticosteriods! Feel free to write if you have some ideas--
JJ