Sleep training

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What’s your sleep training method of choice?

My son was a great sleeper until 6 months and it’s been downhill since. He is now 8 months and wakes up 3 times to eat. He gets so hangry y’all. Anyway I can remedy this? I need this kiddo sleeping through the night before my 2nd gets here. (And yes.. we bed share because I can’t stand to get out of bed to feed him that often. We would like him in his crib soon).

Help!

-tired mama