I’m out of ideas on how to get our 22 month old to sleep through the night. He did for awhile, but now he doesn’t. Please helppppppppppppppppp. First born wasn’t like this
My son, 2nd never did, 16 and still doesn’t 
A 2 year old sleep regression is normal. They can’t help it.
Keep to the routine. Snack before bed. Sound machine. Star machine even. Lots of cuddles
Some kids don’t need much sleep just like adults, some do some don’t. Have you had dr visit lately? Could be ears, teething, growth spurts? What time you putting to bed, try later time. Napping? My kids stopped at about 1 years old. If napping how long? Maybe less nap if so?. What time you putting to bed, getting up. Make sure good snack before bed and is eating good throughout day. So much info is missing besides need to sleep at night
My kids don’t fall asleep well. But once asleep stay asleep. So what i found works well is simply 1mg melatonin. I buy the gummies from Sam’s and they help them fall asleep faster and better