My 2 year old has never been a great sleeper, but lately it has gotten worse. At bed time he cries and cries and won't let us put him down. And he frequently awakes in the middle of the night or early morning and again refuses to be put down. I haven't had a decent sleep in 2 years. I'm so tired! I'm THIS close to hiring a sleep consultant or someone. Do you have any tips on sleep training a 2 year old? Last night we let him cry and scream for 40 minutes before giving in. I'm afraid that check ins would make him more mad, but maybe they're worth a try?