We have been moved into tier 4 (really fed up given our rate is lower than elsewhere in tier 3 and even some in tier 2) but anyway. I am starting back at work next week and we were going to form a childcare bubble with my mum. I have checked this is still allowed in tier 4. We were going to use the Xmas bubble as a way of getting DS used to be left with my mum and so my mum could get used to his routine. Obviously that now can’t happen. She has suggested that we form the childcare bubble early so she can have him for a few hours on her own a couple of times. I’ll drop him with her and go home but will essentially be on call in case it all goes to pot. It will also give me a chance to get some rest as DS isn’t sleeping well at night and DH is away so I’m pretty exhausted at the moment. AIBU to do this? She is low risk, works as a nurse and is tested weekly for covid so it isn’t me putting an elderly relative at risk.