I've been dressing my daughter in a vest, sleepsuit and 2.5 tog sleepsack/grobag but now it's nearer 19 - 20 degrees in her room at night (she's four months old, btw) so I've dropped the vest, but should I perhaps just keep her in the vest & sleepsack? Is that too little/too much? She's such a tolerant little thing that she isn't giving any particular indication either way, but I don't want to accidentally overheat her.
What should I do?