My 2 month old always soak through his diaper after every 3+ hours of sleep at night, pls help!

Had the same issue... Was so tiring changing clothes, bedsheets, and washing. Now, after some experimenting, it's better. Sizing up and changing diapers before/after every feed helped. Tried different brands also (hubs went to apply for samples), and there are differences in how it fits my daughter. We just experimented a bit. All the best to you!

Mine used to soak through and leak every night. I changed the diaper size one size up and the leakage stop. The diaper brand is also another factor, mine didn’t leak through Merries so for night time I use that particular brand.