Try melatonin, it is a natural sleep hormone and shouldn't have any side effects. Start with the smallest dose - I gave my mom 1/2 of a 3 mg tablet - and only add more if needed.
Melatonin (I would check with his doctors first), Magnesium oil (which is really a spray), Lavender essential oil, there are also several sleep specific essential oil blends that work but some better for some people...just make sure you are getting pure essential oils from a reputable company and milk kiefer smoothies with banana and frozen black cherries before bed are each things that can work.
how old is your dad? does he have other medical conditions? just wondering
I find wearing earplugs helps me sleep a little better. small noises can wake me. plus my husband snores, so its a 'must'. also running a fan directly on the bed helps, trying to sleep in a hot room is hard to do. if I cant sleep I usually have to move to the couch. I don't know why it helps. I also enjoy chamomile tea. and other sleepy time teas. I have a lot of insomnia, its no fun.
does he have other medical conditions? just wondering
I find wearing earplugs helps me sleep a little better. small noises can wake me.
plus my husband snores, so its a 'must'. also running a fan directly on the bed helps, trying to sleep in a hot room is hard to do. if I cant sleep I usually have to move to the couch. I don't know why it helps.
I also enjoy chamomile tea. and other sleepy time teas. I have a lot of insomnia, its no fun.