Sweetie? The cat will live if yu don't cuddle her every night for as long as she wants. It's only us who sit and geet wrapped up abou the future and the past and possible meanings to what others do. The cat just wants pets, and if she doens't get as many as yesterday, she'll shrug, lick her end and go to sleep. Sorry if that sounds a bit harsh, but I really think you need to think about you in this and let the cat and your mom sleep together if they want.
By the way.I love cats, and I wish ours were a little calmer so they would sleep with us, but like yours, they want cuddles and games all night. Huggs dear. I think you need to ignore your mom on this one.