Is it bad that as a single mother I let my 5 year old son sleep with me?

Sometimes even now when I go away for a girly trip with my mum and we can only get a hotel room with a double bed I have to sleep with her. I prefer to sleep on my own but near people. I used to go and sleep with my mum as a child if I couldn’t sleep and my dad was working away until almost my teens. I think it’s a good idea that you introduce your son to his own bed but if the nights he is anxious or wants to be close to you then tell him it’s fine for him to sleep with you.