When will baby do stretches at night

Does baby wake up when you try and transfer them? Have you tried co sleeping and side lying breastfeeding?

You can try helping baby to notice the difference between night and day. So when you get up in the morning, open the windows and curtains to let all the light in, feed baby while chatting to them and then change them so they dont fall back asleep, play music or put the tv on, do some tummy time/play with them etc. Do this after each of their feeds to try drag it out a bit, you want wake windows currently to be about 45-60 minutes long working up to 90. Then at bedtime, make it low lighting and quiet, soothing music or white noise, a gentle bath and massage. We used a sleep sack at night but not during the day for example.

At this age they sleep a lot! They could be sad at night just because they want more comfort and interacting which obviously unlikely to get at night. But generally sleep routines dont really come into play until around 3-4 months...

Newborns are different. My LO didn’t sleep at night until he was 12 weeks.
He sleeps all day with a 30 min wake window and at night, he was awake from 11 pm to 4 am with a 30 mins sleep in between. They miss the mom’s comfort at night especially so they might be crying or awake.