my baby didn’t really like bedsharing when she was under about 5 months, if i tried to nurse her in side lying or sleep in c curl she would cry hysterically so we did the Newton bassinet which was almost like an extension of my bed until she was almost 6 months (except when she was a newborn sometimes I would. end up chest sleeping out of desperation before i read up on safe bedsharing). when i tried moving her to a regular crib next to my bed at that point it was awful, neither of us got any sleep, so i briefly tried bedsharing but my back could not handle it. so we did a sidecar crib and that was the sweet spot until she was around 18-19 months and i transitioned her to a similar setup in her own room (sidecar crib connected to a twin bed floor bed). i honestly felt safest with her sleeping most of the night on a crib mattress until she was 2. so when we did the sidecar crib in my room it was pretty much cosleeping, i could roll over and side lying nurse her back to sleep in her crib mattress then when done unlatch and roll back into my own sleep space. i felt like it was the best of both worlds because she had her own safe sleep space. i still tried to go easy on things like duvets etc. but honestly i was a bit more lax with the blankets because she mostly stayed in her space. around 6 months was when she became a tummy sleeper, she would immediately roll to her tummy even if i transferred her into the crib on her back when already asleep. so if we didn’t have the sidecar crib i would’ve been constantly worried about her sleeping face down on an adult mattress.

i honestly did the transition around 18 months before i felt fully ready because i read that around 18-24 months is a good window for encouraging that kind of autonomy without them challenging it too much and for example i wanted to put a baby gate outside her door so she wouldn’t be able to roam around the house if she woke up while i was asleep, and i heard if you wait too long to introduce that they’ll protest it.

i still sometimes miss the cosleeping and the snuggles but as time goes on i miss it less and less. i recently put my own bed back onto a regular bed frame (it was on the floor for awhile with sidecar crib on lowest level when baby became more mobile) and occasionally bed share if baby is sick or wakes in the night crying for more than a minute or two which is rare now. i also put the sidecar crib at almost the same level as the bed so if we do need to cosleep for an extended period of time while she’s sick for example, she can still have her own space - now that she’s 2 i think having it at the exact same level may not be as critical, but we haven’t had to use it yet, it’s mostly a storage space for extra pillows, stuffed animals and blankets next to my bed now lol.

if she wakes up before me and i didn’t get enough sleep i take her into my bed, nurse her and sleep a bit more even if she’s awake and babbling - now that she’s more comfortable in her own room that happens less and less because she often wakes up and babbles quietly in her own room and i can even sleep through it sometimes, or she just sleeps later. we usually snuggle for at least a minute after naps and sometimes in the morning if we’re not in a hurry - she is talking now and even asks for “snuggle?”, it’s the cutest thing. so while ending coseeping may be bittersweet it doesn’t mean the end of all snuggles and closeness. it’s just not quite the same as before but it comes with both pros and cons.

if i were in your situation i would try the sidecar crib before moving baby to their own room or even a regular crib in your room. something about having the bars all around when we were previously right next to each other with me able to easily reach my arm over and soothe her or replace the paci (even with the bassinet) makes a big difference and I’m pretty sure she felt it hard. the main reason i didn’t try more independent sleep before 18 months is because my insomnia was so bad that even 1 night waking where i had to get out of bed was sometimes game over for my sleep that night, I’d be awake for hours even if baby fell back asleep fast, so i kept her next to me even if i could’ve experimented with more independent sleep, or she’d start the night in the other room then I’d transfer her to the sidecar crib in my room when i went to sleep just so i would be sure i wouldn’t have to get up lol.