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https://www.happiestbaby.com/blogs/baby/baby-waking-night-hungry#:~:text=Yes%21%20The%20key%3A%20during%20the%20first%20few%20months,7%20hours%20at%20a%20stretch%2C%20by%203%20months.
https://www.easybabylife.com/7month-old-wakes-every-hour.html
Finally, being 7 months old, he may also be waking up due to separation anxiety. ( Read about 7-month baby milestones here.) If he is sleeping far away from you, consider moving his crib next to your bed, or even moving him into your bed, if you are open to co-sleeping. A teddy or small cloth smelling mom may also help.
https://kindersleep.com/6-reasons-why-your-baby-is-suddenly-waking-every-hour/
https://www.happiestbaby.com/blogs/baby/baby-waking-night-hungry
Yes! The key: during the first few months feed your little one every 1.5-2 hours during the day (if he’s sleeping, wake him after 2 hours). That should help you get a couple of back-to-back longer clumps of sleep (3, 4, or even 5 hours) at night, and eventually grow by 6 hours…then 7 hours at a stretch, by 3 months.
https://www.baby-sleep-advice.com/waking-up-hourly.html
Restless onset of the night. If the start of the night is not peaceful, sleep becomes restless ...
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