A lot of posters here seem to see the increased salary and little else here, but I think you are right to be wary and consider other aspects too.
Money is nice and is very important, of course it is. It really isn’t everything though. In the past I have moved jobs from a small company that I really loved and was well settled in to one that offered more pay. It was a huge mistake and I was so unhappy and disillusioned that I had to leave after just 6 weeks. They expected far too much, provided no guidance or training and there was a huge culture of misogyny and bullying.
I’m not saying that that is necessarily the case with Amazon. I don’t know. From what you say about antisocial hours and shifts though my guess is that they will want their pound of flesh (and for £60k it will be a big pound). Your contracted hours could end up just an on-paper concept and the work- life balance a distant dream.
Those would be my reservations anyway. Just stuff to consider, especially as you say that you enjoy the industry you are currently in and don’t seem happy to leave it.
Use the opportunity to open a proper dialogue with your current employer regarding salary. Explain your dilemmas and reservations and see what they say.
Before anyone accuses me of being wealthy and able to afford to turn down big salary rises, I’m not. Our household income was similar to OP’s until I was made redundant earlier this year, with little prospect of more employment in the medium term at least. I’ve also been on the bones of my arse before and that isn’t a position I ever want to end up in again.