Keeping bedtime routines simple and consistent will help him recognize the pattern of night-time sleep. At night keep wakings dark with the least amount of distractions possible while doing what you know will help him get back to sleep.
And your mantra for these few weeks? My baby is growing. My baby is developing. My baby will be back to his sweet self soon.
You may be experiencing more challenging sleep during this time but keep in mind that after this 4-month PROgression your baby will emerge being more aware and engaged with the world around them.
If you still need help:
It’s fine to offer more support at this age and continue until what you are doing no longer works or until you are ready to make changes. It’s a good idea to wait until your baby is more capable.