Following with interest! Chloe I also have 8.5 month old twins (plus a nearly 2.5 year old) so I feel for you (and me!!). I actually posted on this board a couple of months back when I was having a bit of a meltdown... Thankfully things have improved since then as they are napping so much better and the reflux has really settled down so I feel like there may be light at the end of the tunnel!
Like yours though they aren't sleeping through (one does occasionally, but usually wakes once; the other occasionally wakes once but usually twice, sometimes three times.) I'm still breastfeeding so I'm doing all the wake ups. I am SO TIRED altho weirdly I do think I have somehow acclimatised to it. I always wake up feeling dreadful but after a cold shower and a hot cup of tea I can somehow face the day. Totally have no social life though, I'm too tired!
We've got them in separate rooms (one in their bedroom, one in with us) because they definitely wake each other up. To be honest I'm a bit sick of it and desperately want our room back to ourselves but until they're sleeping through I don't see how it can be done. I've got an absolutely amazing HV has said any time we want she will help us out with some sleep training. I'm holding off for now, but I'm back at work in the new year so think of things aren't better in a month or so I may take her up on it.
No amazing tips - I'm after some myself! But I do always feel so much better if I can get out and about (the isolation and cabin fever can be awful)... Would you consider feeding them one at a time just while you're out? Or giving them the odd bottle here or there? I guess as they get more established on solids that issue will largely sort itself out anyway!
Allegretto can I ask when you got your two back in the same room? My bedroom is a bit of a sanctuary normally so I'm really looking forward to that point!
Sorry probably not much practical help there but lots of empathy. One way or another we will get through it!! 